APA Style, currently in its 7th edition, is a citation protocol established by the American Psychological Association. This style was developed to ensure consistency and to provide style rules for scientific writing.
APA is most often used in the disciplines of:
Social Sciences (including Psychology, Education, Sociology, Economics, Criminal Justice, etc.)
What does APA Style include?
the format & structure of your paper
how you cite other authors within the body of your paper
how you compile a references page at the end of your paper