Citation Machine helps students and professionals properly credit the information that they use. Cite your book in APA format for free. The American Psychological Association (APA) is a scientific and professional organization that represents psychologists in the United States. APA style is a format for academic documents such as journal articles and books. It is codified in the style guide of the American Psychological Association (APA. These OWL resources will help you learn how to use the American Psychological Association (APA) citation and format style. This section contains resources on in-text. The APA Style website provides information about the 6th edition of the APA Publication Manual, including how to format a bibligraphy, in-text citations, formatting. APA website. Site Under Maintenance. The APA Style website is temporarily unavailable for scheduled maintenance. We expect to be back online in a couple of hours. APA format is the standard style for psychology papers. Learn more about documenting your sources, preparing a reference section, and proper in-text citations. APA (American Psychological Association) style is most commonly used to cite sources within the social sciences. This resource, revised according to the 6th edition. Citation Machine helps students and professionals properly credit the information that they use. Cite sources in APA, MLA, Chicago, Turabian, and Harvard for free. The Basics of APA Style. This tutorial is designed for those who have no previous knowledge of APA Style ®. It shows users how to structure and format their work.