This is an easy way to create a bibliography. First open up a word processing/text document. Select the item(s) in Zotero and drag them into the word document.
If you want to drag several items, hold the Crtl button, highlight all of the items and drop them into your document. The items will appear in alphabetical order!
Another way to create a bibliography is to highlight all of the items you'd like to include.
Right click on the items and select 'Create Bibliography from Selected Items'. You will be able to select your citation style and output format.
Click 'Ok' and the bibliograpy will be generated.
To change the citation style, click on the 'Actions' button in the toolbar:
Select 'Preferences' from the drop down menu. Once in the Preferences menu, select Export:
You can then select your output format from a list of options.
Remember to always double check the citations created by Zotero. While is it very useful to have your bibliography created automatically, you may find some slight errors in the output.