Zotero comes with more than twenty citation styles, including popular styles such as MLA, APA, and Chicago/Turabian. You can add additional styles to your personal copy of Zotero.

To add styles, go to the Edit menu and choose Preferences. Go to the Cite tab. You'll see something like this:

Select "Get additional styles..." You'll see a list of available styles. Locate the style you want, either by searching or by scrolling down. Click on it, and it will be immediately added to your copy of Zotero.