The Internet offers several free online citation generators. They can be useful when creating a bibliography, but vary in scope and functionality. Read the directions carefully to avoid errors. Some of the generators offer additional features for a subscription or membership fee.
APA Style, available online from The Writing Center at the University of Wisconsin-Madison, provides examples of paper formatting, citations, and bibliographies in APA style.
CitationFox-APA from the University Libraries at the University of Albany is intended to help with the construction of citations in APA style. CitationFox-APA contains templates and examples for over 500 different resource types.