Cite as specific parts of a source
For example - in-text citation
(White, Habib & Hardisty, 2019, Web Appendix A) in APA 6th
OR
(White, et al., 2019, Web Appendix A) in APA 7th
Reference list
White, K., Habib, R., & Hardisty, D. J. (2019). How to SHIFT consumer behaviors to be more sustainable: A literature review and guiding framework. Journal of Marketing, 83(3), 22–49.