If the essay is in a chapter of a book, edited collection, or anthology, APA format indicates that you must cite the first name, last name, title of the essay, title of the collection, publisher, year and page range. Indeed, APA style is widely used by students, researchers, and professionals in the social and behavioral sciences. The Scribbr APA Reference Generator automatically generates accurate references and in-text citations for free. This citation guide presents the most important citation guidelines from the 2020 APA Publication Manual. More information on APA style can be found in the Publication Manual of the American Psychological Association, 7th ed. and the Concise Guide to APA Style 7th ed. p 015, unless p is lt 001, write “lt 001” instead. • Put a space before and after a mathematical operator, for example less, more, greater than, less than.