Cita APA

Pepper, M., Pratt, G., & Winnick, A. (1984). Customer service. Bennett Pub.

Citación estilo Chicago

Pepper, Michael, Gilbert Pratt, and Alice Winnick. Customer Service. Peoria, Ill: Bennett Pub, 1984.

Cita MLA

Pepper, Michael, et al. Customer Service. Bennett Pub, 1984.