Citazione Stile APA (7a Edizione)

Katz, W. A. (1990). The reference library user: Problems and solutions. Haworth Press.

Citazione stile Chigago Style (17a edizione)

Katz, William A. The Reference Library User: Problems and Solutions. New York: Haworth Press, 1990.

Citatione MLA (9a ed.)

Katz, William A. The Reference Library User: Problems and Solutions. Haworth Press, 1990.