If you use the ideas of an author which you did not directly read yourself, but saw referred to or cited in another publication, this is considered an indirect reference and needs to be treated as a secondary source.
The APA7 Publication Manual advises that it is better academic practice to find and read the original text - especially if you are referring to significant portions of the author's ideas.
Read this advice on the APA Blog here at this link.
Follow the format of the reference in which you found the indirect citation.
|Material Type||In-Text Citation||Reference List & Notes|
eBook - no DOI or website
Miller (1953, as cited in Agrios, 2012) found
or ...as was found (Miller, 1953, as cited in Agrios, 2012)
Agrios, G. (2012). Plant Pathology. Elsevier Science.
Note: You do not require a full citation for Miller (1953) in your end-text reference list because you have not read the work by Miller, only Agrios' interpretation of it.
|Journal article||(Tight, 2016 cited in Matthews et al., 2020)||
Matthews, A., McLinden, M., & Greenway, C. (2021). Rising to the pedagogical challenges of the Fourth Industrial Age in the university of the future: An integrated model of scholarship. Higher Education Pedagogies, 6(1), 1-21. https://doi.org/10.1080/23752696.2020.1866440
Note: You do not require a full citation for Tight (2016) in your end-text reference.