American Psychological Association (APA) style is a wiely accepted style of documentation, particularly in the social sciences. APA style specifies the names and order of headings, formatting, and organization of citations and references, and the arrangement of tables, figures, footnotes, and appendices, as well as other manuscript and documentation features. APA style uses Harvard referencing, also known as the author-date system of citations and parenthetical referencing, keyed to a subsequent list of "References." The APA Publication Manual provides basic guidelines for documenting both print and electronic resources.