Google Docs has a simple, built-in tool for adding citations. However, if you are looking for a tool that supports more referencing styles and features, these are the add-ons worth checking out.

Citations and References help other people know the original source of a piece of information you added to your document. If you want to add source, citations, or references in Google Docs, here is ...

Google Docs has all the features you need to write a paper in MLA format, as well as a template to set one up automatically.

You can make a hanging indent in Google Docs using the ruler tool, which lets you change the margin size.