Helpful Tips for References in APA Style
      
        - Reference List or Bibliography? APA use a refererence list. The reference list provides information necessary to identify and retrieve sources sed by the author. Authors must include only sources that are cited in the paper. In contrast, a bibliography cites all works reviewed and/or cited.
        - 
          All  references are double   spaced and use a hanging indent (all lines after the  first line of each   entry in is indented one-half inch from the left margin).  For   directions in using Word’s automatic hanging indent feature visit:  http://www.drgwen.com/materials/apa/30.htm
        - 
          Give  the location (city and   state) where the publisher is located for books,  reports, and other   nonperiodical publications. Use the official two-letter U.S.  Postal   Service abbreviations. For cities outside the United States, spell out    the country names.  
        - 
          Include  the   digital object identifier (DOI) assigned to a source even if the print   is  available. DOIs may be searched using the registration agency  http://CrossRef.org which will help you locate any  online supplemental archives associated with the article. 
        - 
          Usually, database information is    not included as part of the reference. However, if a document is   difficult to  locate through its primary publishing channels, give the   home page URL for the  online service. See pp. 189-192.