Katz, W. A. (1992). Introduction to refenrence work. New York: McGraw-Hill, Inc.
Trích dẫn kiểu ChicagoKatz, William A. Introduction to Refenrence Work. New York: McGraw-Hill, Inc, 1992.
Deismireacht MLAKatz, William A. Introduction to Refenrence Work. New York: McGraw-Hill, Inc, 1992.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.