A paper written in APA format has a title page, an abstract, a main body and references, explains Purdue University. APA requirements also specify that the paper must be double-spaced, be printed in a clear font, have 1-inch margins on all sides and include a page header on each page.
The APA recommends, but does not require, using 12-point Times New Roman font, notes Purdue University. The page header, which is also called a running head, is the title of the paper. It is printed in all capital letters and can be no longer than 50 characters, and it appears on every page, including the title page, the reference section and any appendices.
If a paper has multiple headings within the main body, APA requires the heading to have a line of its own, and it is either typed in boldface or italics, according to Purdue University. However, the regular font format is required for the section titles in the paper, including the title page, the abstract, references, appendices and footnotes, as these are section labels.
Lists and tables are also permissible in APA format, as Purdue University explains. Authors can use bullet points or numbered lists, or they can choose to include running lists in the text itself. Each included table should be placed on its own page at the end of the paper, following the reference section. If formatting for lists or tables is not specified by the organization for which the paper is written, each paper should have a consistent style, and the font and formatting should match the main body.