Reference and User Services Association. (1996). RUSA update. The Reference and User Services Association.
Chicago Style (17th ed.) CitationReference and User Services Association. RUSA Update. Chicago, Ill.: The Reference and User Services Association, 1996.
Cita MLAReference and User Services Association. RUSA Update. The Reference and User Services Association, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.