APA

Zeithaml V. A., Bitner M. J., . (2000). Services marketing: integrating customer focus across the firm. Boston: Irwin/McGraw-Hill.

Chicago

Zeithaml Valarie A, Bitner Mary Jo, . 2000. Services marketing: integrating customer focus across the firm. Boston: Irwin/McGraw-Hill.

Harvard

Zeithaml V. A., Bitner M. J., . (2000). Services marketing: integrating customer focus across the firm. Boston: Irwin/McGraw-Hill.

MLA

Zeithaml Valarie A, Bitner Mary Jo, . Services marketing: integrating customer focus across the firm. Boston: Irwin/McGraw-Hill. 2000.