Although APA's style manual, Publication Manual of the American Psychological Association / 7th ed., is not available online, the association does post links to some supporting materials.
Publication Manual of the American Psychological Association by
The Publication Manual of the American Psychological Association, Seventh Edition is the official source for APA Style. With millions of copies sold worldwide in multiple languages, it is the style manual of choice for writers, researchers, editors, students, and educators in the social and behavioral sciences, natural sciences, nursing, communications, education, business, engineering, and other fields. Known for its authoritative, easy-to-use reference and citation system, the Publication Manual also offers guidance on choosing the headings, tables, figures, language, and tone that will result in powerful, concise, and elegant scholarly communication. It guides users through the scholarly writing process--from the ethics of authorship to reporting research through publication. The seventh edition is an indispensable resource for students and professionals to achieve excellence in writing and make an impact with their work. The seventh edition has been thoroughly revised and updated to reflect best practices in scholarly writing and publishing. All formats are in full color, with a new tabbed spiral version Improved ease of navigation, with many additional numbered sections to help users quickly locate answers to their questions Resources for students on writing and formatting annotated bibliographies, response papers, and other paper types as well as guidelines on citing course materials Dedicated chapter for new users of APA Style covering paper elements and format, including sample papers for both professional authors and student writers New chapter on journal article reporting standards that includes updates to reporting standards for quantitative research and the first-ever qualitative and mixed methods reporting standards in APA Style New chapter on bias-free language guidelines for writing about people with respect and inclusivity in areas including age, disability, gender, participation in research, race and ethnicity, sexual orientation, socioeconomic status, and intersectionality More than 100 new reference examples covering periodicals, books, audiovisual media, social media, webpages and websites, and legal resources More than 40 new sample tables and figures Expanded guidance on ethical writing and publishing practices, including how to ensure the appropriate level of citation, avoid plagiarism and self-plagiarism, and navigate the publication process Guidelines that support accessibility for all users, including simplified reference, in-text citation, and heading formats as well as additional font options
The Concise APA Handbook by
Most students struggle with learning how to find references, use them effectively, and cite them appropriately in a required format. One of the most common formats is that of APA. The authors all teach at the same university, where their current off-the-shelf reference book, while helpful, is filled with a lot of extra information that they do not use and contains missing or incorrect information. The cost of this book also continues to rise. In a search for something else to meet their needs, they discovered that there are no concise guides that deal with APA only that are cost effective or user-friendly for students who are not familiar with using references and formatting an essay in the APA format. In order to offer student writers a source of information that is concise and cost-effective, the authors have written this handbook to provide students with important information in clear, concise, user-friendly language, as well as to offer practical examples that will help them grasp the concept of secondary research writing. Much of the published materials present the nitpicky details of APA in very technical terms that are not easy to understand. This handbook presents the same information in simplified terms with images and step-by-step instructions in ways that will make sense to both undergraduate and graduate student writers. Additionally, student writers often struggle with understanding the concept of plagiarism, as well as how to find sources, evaluate the appropriateness of sources, and use sources in effective ways (e.g., how to integrate quotes, when to paraphrase, among others). This book provides this information in a concise and easy-to-understand format.
The Psychologist's Companion by 
Undergraduate Writing in Psychology by