Cita APA (7a ed.)

Katz, B., & Fraley, R. A. (1984). Evaluation of reference services. Haworth.

Cita Chicago Style (17a ed.)

Katz, Bill, y Ruth A. Fraley. Evaluation of Reference Services. New York [etc.]: Haworth, 1984.

Cita MLA (9a ed.)

Katz, Bill, y Ruth A. Fraley. Evaluation of Reference Services. Haworth, 1984.