APA citiranje

Katz, W. A. (1969). Introduction to reference work: Reference services. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Katz, William A. Introduction to Reference Work: Reference Services. New York: McGraw-Hill, 1969.

MLA citiranje

Katz, William A. Introduction to Reference Work: Reference Services. New York: McGraw-Hill, 1969.