1. Biblipgraphies can be generated automaticly by selecting the items in Zotero, then drag and drop to MS Word, wiki, blog, GoogleDoc or OpenOffice Writer.

 Select the Items in the middle pane,

 

Drag and drop in Microsoft Word,

 

To change the citation style, click the gear button , Click Preference -> Export  Under Default Output Format, choose your prefered output syle.

2. You can also right click on the selected items in the middle pane and then click on Create Bibliography from Selected Items,

 

 

Then select the Citation Style and Format,

 

 Click the OK button, the bibliographies are generated and saved in RTF format.

3. You can install Zotero plug-in to Microsoft Word and OpenOffice Writer, and then cite while you write.
 
To install plug-in to Microsoft Word

and cite while you write