Note that a reference list differs from a bibliography in that it includes only those works actually cited within the paper.
For additional details, including acceptable abbreviations, version to cite, and order of references, refer to sections 6.22 to 6.25 of the APA Publication Manual (6 ed., pp. Agreement of text and Reference list: APA Style requires all sources cited in the text to be documented in the reference list, with the exception of personal communications such as unpublished letters, memoranda and informal electronic communications (APA 6.20); and, ancient classical works and religious texts numbered systematically across all editions (APA 6.18).
If you are quoting from a work, you will need to include the author’s last name, year of publication, and the page number (p.#) or paragraph number (para.#).
Introduce the quotation with a signal phrase that includes the author's last name followed by the date of publication in parentheses.
#)., you will also need to include the page number.
If there are no page numbers, include the paragraph number instead.
For example, if you read an article by Brown (2017) and that author quotes the earlier work of Smith (2010), Brown is the secondary or indirect source (because it was written later) and Smith is considered the direct or original source (because it was written first).
To cite a source you found in another source, state the original author within your sentence and state "as cited in" followed by the last name and year of the secondary source.
APA Style also addresses general editorial issues and the preparation of manuscripts for publication.
This guide does not discuss manuscript structure, writing style, mechanics of style, or data display.