You can create a bibliography list in any of the major citation styles from Zotero by single item or by whole collection. The bibliography will download to your computer as a text file that you can copy and paste into a Word Document or other preferred location.
Right click on the item title in the left window in the Zotero Standalone Client.
Choose Create Bibliography from Item from the menu.
Right click on the item title in the left window in the Zotero Standalone Client.
Choose Create Bibliography from Collection from the menu.
Choose the Citation Style from the list
Under Output Mode, choose either Citations (In-Text) or Bibliography (References).
Under Output Method, select one of the save or print options
