Παραπομπή APA
Wilson, A., Zeithaml, V. A., Bitner, M. J., & Gremler, D. D. (2012). Services marketing: Integrating custumer focus across the firm (2nd ed.). London: McGraw-Hill Education.
Παραπομπή Chicago StyleWilson, Alan., Valarie A. Zeithaml, Mary Jo Bitner, and Dwayne D. Gremler. Services Marketing: Integrating Custumer Focus Across the Firm. 2nd ed. London: McGraw-Hill Education, 2012.
Παραπομπή MLAWilson, Alan., Valarie A. Zeithaml, Mary Jo Bitner, and Dwayne D. Gremler. Services Marketing: Integrating Custumer Focus Across the Firm. 2nd ed. London: McGraw-Hill Education, 2012.
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