Reference and User Services Association. (1996). RUSA update. The Reference and User Services Association.
Citación estilo ChicagoReference 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.
Warning: These citations may not always be 100% accurate.