Headings and subheadings provide structure to a document. They report what each section. relates to the topic and allows easy navigation within the document. APA rubrics have five possible levels. Each heading level is formatted differently. Note: Title case just means that you should capitalize the first word, words of four letters or more, and all. Type the word “References” on the first line of the page and center it. 18 Do not use bold, italics or ation marks on the word “References”. ". Double the spacing of the entire “References” page. Do not add an extra line between the “References” title and your first reference item. 19 X Research source. Choice of parentheses or parentheses. In general, to determine whether to use parentheses or brackets in a reference, consult the template and example reference in the publication manual for the type of work you wish to cite. When parentheses and square brackets are present, place the information in parentheses first and in parentheses. Use the section label “References” and not “Works Cited” or “Bibliography”. Start the reference list on a new page after the text of your article. Center the label at the top of the page and write it in bold. It is acceptable to use "Reference" as a label when you have cited only one source in your article. Format references as seventh.