Reference and User Services Association. (1996). RUSA update. The Reference and User Services Association.
Chicago-referens (17:e uppl.)Reference and User Services Association. RUSA Update. Chicago, Ill.: The Reference and User Services Association, 1996.
MLA-referens (8:e uppl.)Reference and User Services Association. RUSA Update. The Reference and User Services Association, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.