The reference list is a list of all of the sources you have cited in your work. Each entry is formatted as an end-text reference, and provides enough information for the reader to identify and locate the source for themselves.
Every in-text citation (other than personal communication) should correspond to an end-text reference found in the reference list, and every reference list entry should have at least one in-text citation.
For more clarification, see sections 9.44 to 9.48 in the APA 7th publication manual.
In order to ensure that each work cited has a unique in-text citation, works with the same author and year of publication must be differentiated in some way. In APA style, this is done by adding a lower-case letter to the year of publication in the reference list. The same letter will then be used as part of the date in each work's in-text citation.
Caro, J. (2019a). Accidental feminists. Melbourne University Press.
Caro, J. (2019b, June 19). Nothing left to prove in fun and moving 'final' show [Review of The Monkees concert]. The Guardian. https://www.theguardian.com/music/2019/jun/19/the-monkees-review-nothing-left-to-prove-in-fun-and-moving-final-show
Caro, J. (2019c, August 29). The greatest gifts I received from my father. The Sydney Morning Herald. https://www.smh.com.au/lifestyle/life-and-relationships/the-greatest-gifts-i-received-from-my-father-20190829-p52lzo.html
Follow the same instructions if you are citing a different author with the same family name and first initials who wrote a work in that year. For instance, if a different J. Caro wrote a book in 2019 entitled Book Title, it would become the work labelled 2019b ("Book" comes after "Accidental" alphabetically, but 2019 is ordered before a more specific date), and Jane Caro's articles would then become 2019c and 2019d.
...according to a Guardian review of the concert (Caro, 2019b).
If the date uses letters instead of a year, use a hyphen to avoid confusion:
Beyond Blue. (n.d.-a). Our history. https://www.beyondblue.org.au/about-us/who-we-are-and-what-we-do/our-history2
Edith Cowan University acknowledges and respects the Noongar people, who are
the traditional custodians of the land upon which its campuses stand and its programs
In particular ECU pays its respects to the Elders, past and present, of the Noongar people, and embrace their culture, wisdom and knowledge.