Gaya APA

ZEITHAML, Valarie A., Parasuraman, A., Berry, Leonard L.. (1990). DELIVERING QUALITY SERVICE; Balancing Customer Perceptions and Expectations . New York: THE FREE PRESS.

Gaya Chicago

ZEITHAML, Valarie A., Parasuraman, A., Berry, Leonard L.. DELIVERING QUALITY SERVICE; Balancing Customer Perceptions and Expectations. New York: THE FREE PRESS, 1990. Text.

Gaya MLA

ZEITHAML, Valarie A., Parasuraman, A., Berry, Leonard L.. DELIVERING QUALITY SERVICE; Balancing Customer Perceptions and Expectations. New York: THE FREE PRESS, 1990. Text.

Gaya Turabian

ZEITHAML, Valarie A., Parasuraman, A., Berry, Leonard L.. DELIVERING QUALITY SERVICE; Balancing Customer Perceptions and Expectations. New York: THE FREE PRESS, 1990. Print.