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APA 7th Edition Referencing Guide1

A Wintec Library guide to referencing in APA 7th edition style

Retrieval dates for non-archived webpages

When referencing non-archived webpages (webpages that are designed to change) in your work, you will need to include a retrieval date with the URL. To determine if a page is archived or non-archived, check for a permalink button. If a permalink is available, the page is archived and does not require a retrieval date.

The following resources require retrieval dates:

  • A webpage continually updated with new data (e.g., a population clock).
  • Online dictionary/encyclopedia entries
  • Online maps (e.g., Google Maps)
  • Social media (e.g. Twitter profile or Facebook page)


  • If a webpage is likely to change (e.g., one that invites user-editing or is updated with new data), it is likely to be unarchived and to require a retrieval date when referencing.
  • If a webpage links to its 'version history', this indicates the webpage is designed to change and will likely require a retrieval date when referencing.
  • A webpage with no date (n.d.) is more likely to change than one with a clear publication date.

See Chapter 10 (Reference Examples) of the Publication Manual for examples of web resources that require a retrieval date when referencing.


The example below shows how to include a retrieval date when required.

Reference list entry

StatsNZ. (2019, November 14). Estimated population of NZ. Retrieved 20 January, 2020, from

In-text citations

StatsNZ (2019) shows that ... (para. 2).

... (StatsNZ, 2019, para. 2).

Only include the retrieval date in the full reference list entry; it is not necessary to include the retrieval date in in-text citations.
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