The latest APA style and grammar guidelines, as featured in the 7th edition of the APA Publication Manual, are freely available to view online.
These pages provide guidance on all aspects of writing and presenting a Psychology paper or report such as grammar, the use of tables, figures and headings, and how to ensure you are using bias-free language.
Students should fine the detailed sections on in-text citations and references particularly useful. There is advice on paraphrasing, how to use secondary sources and direct quotations, as well as examples of how to cite a comprehensive list of sources including books, journal articles, web pages and reports.
If any of the above links do not work, you can view the style guide at: https://apastyle.apa.org/style-grammar-guidelines/