The Output Styles Menu

The style selected from the Output Styles submenu of the Tools menu determines how references are formatted for the preview subpanel in the Reference panel, as well as for the Format Bibliography, Format, Print, Export, and Copy Formatted Reference commands.

By default, these standard bibliographic styles are set as favorites in your Output Styles menu:

Annotated: This style generates Author-Date citations. The bibliography includes abstracts.
APA 7th: This style displays all authors if there are twenty or less; if there are twenty-one or more, it displays the first nineteen authors (or editors), followed by a comma and an ellipsis, followed by the last author (or editor).
Author-Date: This style generates a bibliography alphabetized by author name, and in-text citations with the Author and Year.
Chicago 17th Footnote: This style is based on the Chicago Manual of Style, 17th edition. It contains footnotes and a bibliography.
MHRA (Author-Date): This style is based on the Modern Humanities Research Association style. An MHRA footnote style is also available.
Numbered: This style generates a numbered bibliography with corresponding numbered in-text citations.
Show All Fields: This style generates a list of the references as entered, including all fields and the names of the fields.
Turabian 9th Footnote: This style is based on the 9th edition of A Manual for Writers of Research Papers, Theses, and Dissertations.
Vancouver: This style is based on the "Medical Journal" requirements in Citing Medicine, published by the US National Institutes of Health at http://www.nlm.nih.gov/bsd/uniform_requirements.html.

Mark individual styles as your favorites in The Style Manager to have them appear in the Output Styles menu, the Reference Preview subpanel, and when using Cite While Your Write, Format Paper, or Export commands.