APA Style

Zeithaml, Valarie A (et.al), Parasuraman, A, Berry, Leonard L. (1990). Delivering Quality Service; Belancing customer perceptions and expectations . New York: The Free Press.

Chicago Style

Zeithaml, Valarie A (et.al), Parasuraman, A, Berry, Leonard L. Delivering Quality Service; Belancing customer perceptions and expectations. New York: The Free Press, 1990. Text.

MLA Style

Zeithaml, Valarie A (et.al), Parasuraman, A, Berry, Leonard L. Delivering Quality Service; Belancing customer perceptions and expectations. New York: The Free Press, 1990. Text.

Turabian Style

Zeithaml, Valarie A (et.al), Parasuraman, A, Berry, Leonard L. Delivering Quality Service; Belancing customer perceptions and expectations. New York: The Free Press, 1990. Print.