The References tab is a wealth of commands designed to help properly document your work with Footnotes, Citations and Bibliography commands. You’ll also find commands for creating a Table of Contents, an Index and a Table of Authorities.
The Table of Contents group on the References tab contains commands to help you generate and update a Table of Contents, but unless it’s used in conjunction with Styles – it won’t do you any good.
The Footnotes group on the References tab contains commands for inserting and navigating footnotes. This group also contains a Dialog Box Launcher that opens the Footnote & Endnote Dialog Box.