English Grammar Lab

← C2

Integrating sources and internal references

You will be able to Use reporting structures to attribute claims and guide readers to other sections.

Explanation

Academic references can foreground the author, the study or the claim. Patterns include Author argues that, as demonstrated by, the study conducted by and as discussed in Section 2. The grammatical choice should make the source and evidential role clear.

Examples

Detailed course

Understand the grammar point

Go to practice ↓

Detailed explanation

Academic writers refer to sources not only to acknowledge ownership but also to position evidence within an argument. The grammatical form determines what is foregrounded. An author-prominent citation places the researcher first: Rahman argues that the categories overlap. An information-prominent citation foregrounds the claim or finding: The categories have been shown to overlap. A study-prominent form foregrounds the research object: The study conducted by Rahman examined category overlap.

Reporting verbs express stance. Demonstrate, establish and show present a claim as strongly supported; suggest, indicate and imply are more cautious; argue, claim and contend attribute a position to an author. The verb must match the source’s actual level of certainty. Writing that a study proved something when it merely suggested an association misrepresents the evidence.

Non-finite clauses and prepositional phrases integrate references compactly: as demonstrated by Lee, according to the national survey, building on earlier work, in line with previous findings. These structures must attach clearly to the right clause. A dangling phrase such as “Based on Lee, the results changed” is illogical because the results were not based on a person; write “Based on Lee’s method, the analysis produced different results.”

Internal references guide the reader through the same document: as discussed in Section 2, see Appendix A, the following chapter examines, as shown in Figure 4. They should point accurately to a stable element and explain its relevance. Excessive cross-referencing forces the reader to navigate unnecessarily.

Effective source integration combines attribution, interpretation and relevance. A citation should not sit as an isolated ornament. Introduce the source, state the claim accurately, and explain how it supports, qualifies or challenges the current argument. Vary the grammatical pattern according to what the paragraph needs to foreground.

How to form it

Author-prominent: Author + reporting verb + that-clause/noun phrase. Information-prominent: claim + passive reporting verb or parenthetical citation. Study-prominent: the study/review conducted by + author + verb. Compact frames include according to, as demonstrated by, building on and as discussed in Section X.

Choose the citation pattern according to whether the author, study or finding deserves focus.

Match the reporting verb to the source’s actual degree of certainty.

Ensure introductory source phrases attach logically to the clause that follows.

Use internal references selectively and accurately.

Explain the relevance of a source rather than merely inserting a citation.

Guided examples

Rahman argues that the distinction is methodologically important.

The author-prominent pattern foregrounds Rahman and attributes an argument rather than an established fact.

The association has been demonstrated in three longitudinal studies.

The information-prominent passive foregrounds the finding and presents strong supporting evidence.

The study conducted by Lee used a nationally representative sample.

The study-prominent form focuses on the design while still identifying the researcher.

According to the national survey, participation declined after 2022.

According to attributes the information to a named source.

As demonstrated by Patel, the effect varies across age groups.

The introductory passive phrase integrates the source and foregrounds the evidential relationship.

As discussed in Section 2, the two categories are not mutually exclusive.

The internal reference guides readers to an earlier explanation in the same document.

Common mistakes

Not: Lee proves that the variables may be associated.

Use: Lee suggests that the variables may be associated.

The modal may signals uncertainty, so proves overstates the source’s conclusion.

Not: According to the results show a significant difference.

Use: According to the results, there is a significant difference.

According to is a preposition and cannot be followed directly by a finite verb phrase in this structure.

Not: Based on Rahman, the categories were revised.

Use: Based on Rahman’s analysis, the categories were revised.

The phrase must identify the work or evidence on which the revision was based, not merely the person.

Not: As discussed in the researcher, the method has limitations.

Use: As discussed by the researcher, the method has limitations.

Use by for the agent who discussed the issue; in introduces a document section or publication.

Before you practise

  • What should be foregrounded: the author, the study or the finding?
  • Does the reporting verb accurately represent the source’s certainty?
  • Is the source phrase grammatically attached to the correct clause?
  • Does the internal reference point to the correct section, figure or appendix?
  • Have I explained why the cited material matters here?

Reading text

Synthesising Evidence on Remote Work

About 239 words

Research on remote work has produced mixed conclusions. Alvarez argues that flexible arrangements improve employee autonomy, while Chen suggests that the effect depends heavily on management practice. The different reporting verbs matter: argues attributes a reasoned position, whereas suggests presents a more cautious interpretation.

A large survey conducted by the National Employment Institute found that employees working remotely two days a week reported higher job satisfaction. According to the survey, however, fully remote employees were more likely to report professional isolation. These findings have been supported by several smaller studies, although the strength of the association varies.

As demonstrated by Okafor, team communication patterns also influence outcomes. Okafor’s longitudinal study tracked project groups for eighteen months and showed that clear response-time expectations reduced coordination problems. Building on this work, a later experiment compared teams with and without shared communication rules.

The evidence does not establish that one arrangement is universally superior. Some studies indicate that remote work reduces travel-related stress; others contend that it weakens informal learning. As discussed in Section 3 of the review, job type and household conditions modify both effects.

The review therefore recommends a conditional policy rather than a single rule. Managers should consider task interdependence, employee preference and available workspace. The references are integrated in different ways because each sentence has a different focus. Author-prominent forms attribute interpretations, study-prominent forms describe methods, and information-prominent forms foreground findings that contribute directly to the review’s conclusion.

Reading comprehension

  1. What did the national survey find about hybrid remote work?

    Show answer

    Employees working remotely two days a week reported higher job satisfaction.

  2. What reduced coordination problems in Okafor’s study?

    Show answer

    Clear expectations about response times.

  3. Why does the review reject one universal arrangement?

    Show answer

    The effects vary according to management, job type, household conditions and other factors.

  4. Why are different source-integration patterns used?

    Show answer

    They foreground different elements: authors, study designs or findings.

Grammar in the text

  1. Alvarez argues that flexible arrangements improve employee autonomy

    The author-prominent structure attributes an interpretive position to Alvarez.

  2. A large survey conducted by the National Employment Institute

    The reduced passive relative clause identifies the source while foregrounding the study.

  3. According to the survey

    The prepositional phrase attributes the following information to the survey.

  4. As discussed in Section 3 of the review

    The internal reference directs readers to a related discussion in the same document.

Listening practice

Watch a TEDx talk

“The power of introverts” — Susan Cain (TED). Listen for clear, natural English and pick up new vocabulary while you review this grammar point.

Check your understanding

What does Susan Cain say Western culture, especially in the United States, tends to favor?

Check your understanding

Which of these is one of Susan Cain's three calls to action at the end of her talk?

Practice

Choose the best answer. As ___ by Rahman, the effect varies considerably across regions.

Practice

Choose the best answer. The longitudinal study ___ by the institute included 600 participants.

Practice

Choose the best answer. ___ discussed in Section 2, the two categories overlap.

Written practice

Produce the answer yourself. Capitalisation and final punctuation do not affect validation, but the grammar and word order must be correct.

Grammar transformation

Written practice

Rewrite the sentence to foreground the source, following the pattern 'as demonstrated by...'.

Lee demonstrated that the effect varies across age groups.