 how to change reference style in Zotero Reference Manager when we are using Google Docs. So I'm going to show how to change Van Gogh's style into APA style. So for that, I need to go to Zotero. I need to click on document preferences. It will ask for citation style. So if you find your expected reference style in this list, you can directly go. Suppose I want some other APA style, click on this manage style, you get an option of get additional styles. So if I click that, it will go to the Zotero style repository. There you can search for the reference style which you are expecting. So here I am typing APA. Suppose if I want American Psychological Association annotated bibliography, I can click on this. Before clicking, you can keep the cursor and you can check how that reference appears. So if I click on that APA, that will appear here. Then again, we need to go to Zotero document preferences. So there you get this APA 7th edition. So we click on this. So the reference style got changed. Suppose if you are not able to find reference style, what you can do is you can go to CSL editor and you can create your own reference as per your own needs.