Gaya APA

PASURAMAN,A, ., BERRY,Leonardt, . (1990). Delivering Quality Service,Quality service;balancing customer perception and expextetion . New York: The Free Press.

Gaya MLA

PASURAMAN,A, ., BERRY,Leonardt, . "Delivering Quality Service,Quality service;balancing customer perception and expextetion". New York: The Free Press, 1990. Text.