It's easy to create a bibliography from your Zotero library.
Select the references or collections you want to include. Hold the control key
and click to select multiple items. Right-click one of the selected items and
choose Create Bibliography. Choose the bibliographic style you want, and select
the output format: Save as RTF or HTML, copy to clipboard or print. (The RTF file format is compatible with all word
processors.)
Or you can just drag and drop references from Zotero into your document! They'll
turn into fully formatted citations. This works with any word processor including Google Docs. Change the default style under Preferences on the "gear" menu.