The Publication Manual of the American Psychological Association (7th ed.) is the official source for citing in APA style.
The following links lead to examples of references (with corresponding in-text citations) from the official APA Style website. Data sets are covered in-depth in Sections 10.10–10.11 of the 7th edition of the Publication Manual. For reference examples not listed on this page, refer to the Publication Manual or to the APA Style website.