Cite Your Sources
Choose a style and stick with it. Below are two different styles you may choose between. Take the time to read your style manual. In addition to telling you how to format citations, these guides offer tips on how to balance concision with clarity, how to format a date for adjectival use, when to use the singular they, and much more.
Using citation management software like Zotero is not required, but it can make formatting your citations a lot easier. If you'd like to use Zotero, follow the Harvard-specific installation steps on Zotero: Getting Started