Citazione Stile APA (7a Edizione)

Katz, W. A. (1992). Introduction to reference work (6th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Katz, William A. Introduction to Reference Work. 6th ed. New York: McGraw-Hill, 1992.

Citatione MLA (8a ed.)

Katz, William A. Introduction to Reference Work. 6th ed. McGraw-Hill, 1992.