Valarie A., Z., Mary, J. B., & Dwayne D., G. (2021). Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall.
استشهاد بنمط شيكاغوValarie A., Zeithaml, Jo Bitner Mary, و Gremler Dwayne D. Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall, 2021.
MLA استشهادValarie A., Zeithaml, Jo Bitner Mary, و Gremler Dwayne D. Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.