How do I cite a citation within a source in APA7 (secondary citation)?

Answer

If you are in a circumstance where you cannot find an original document (or primary source) but it is cited within an source you are using follow these directions:

In the reference list, provide an entry for the secondary source that you used.
In the text, identify the primary source and write “as cited in” the secondary source that you used.

If the year of publication of the primary source is known, also include it in the text citation.

For example, if you read a work by Lyon et al. (2014) in which Rabbitt (1982) was cited, and you were unable to read Rabbitt’s work yourself, cite Rabbitt’s work as the original source, followed by Lyon et al.’s work as the secondary source. Only Lyon et al.’s work appears in the reference list.

This is taken from: Secondary Sources (APA Style).

Here is an example:

Post-secondary enrolment by 19-year-olds has been increasing in Canada (Frenette, 2017, as cited in Bates, 2019, 1.1)

Reference

Bates, A. W. (2019). Teaching in a digital age: Guidelines for teaching and learning (2nd ed.). B.C. Faculty Pressbooks. https://pressbooks.bccampus.ca/teachinginadigitalagev2/

For more information and examples see Secondary Sources (APA Style).