APA (American Psychological Association) style is typically used in the social sciences. Below are very basic examples of the style for a book and a journal article, so be sure to go to the resources listed to get formatting guidelines for the vast variety of other types of sources.
Book, generic format:
AuthorLastname, First Initial. (Year). Book title. Location: Publisher.
Book, specific example:
Journal article from database, generic format:
AuthorLastname, First Initial. (Date). Article title. Journal Title, Volume(Issue),
Journal article from database, specific example:
in Wayne County, Michigan: A comparison by ZIP code characteristics. Journal Of The American Pharmacists Association: Japha, 54(6), 618-624. doi:10.1331/JAPhA.2014.14105
APA Exposed (an Online Tutorial from Harvard)
Citing Images in APA (from State College of Florida)
When quoting sources, APA format uses an author/year/page method of citation. The author's last name is given in the text of your writing followed by the year of publication in parentheses, with the page number in parentheses after the quote. For example:
When speaking of successful people, Gladwell (2008) states "what truly distinguishes their histories is not their extraordinary talent but their extraordinary opportunities" (p. 81).