Citazione Stile APA (7a Edizione)

Katz, W. A. (2002). Introduction to reference work (8th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Katz, William A. Introduction to Reference Work. 8th ed. Boston: McGraw-Hill, 2002.

Citatione MLA (9a ed.)

Katz, William A. Introduction to Reference Work. 8th ed. McGraw-Hill, 2002.