"APA" stands for American Psychological Association, which is a professional organization for the field of psychology. APA writes and publishes its own publication manual, which describes in detail all of the rules and regulations regarding APA Style. APA Style involves rules about not only citation and referencing, but also writing and formatting. APA Style is widely used across disciplines, particularly in the sciences and social sciences. These style rules are intended to make scholarly writing more uniform so that it is more widely accessible and understandable.
Image taken from https://apastyle.apa.org/index.
The APA Style Blog publishes weekly articles about various aspects of APA Style. It is an official supplement to the publication manual, written and maintained by experts on APA Style. If you have a question about APA and you can't find the answer in the publication manual, try searching the blog's website for answers.
All three library locations (Greenspring, Owings Mills, and the Learning Commons) have copies of this publication manual for use in the library. In addition, copies can be checked out at the Greenspring and Owings Mills libraries.