Cita APA

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

Chicago Style Citation

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

Cita MLA

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