ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. (2016). SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM (6TH.). MC GRAW HILL EDUCATION.
Παραπομπή σε μορφή Chicago (17η εκδ.)ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM. 6TH. NEW DELHI: MC GRAW HILL EDUCATION, 2016.
Παραπομπή σε μορφή MLA (9th εκδ.)ZEITHAML VALARIE A; BITNER MARY JO; GREMLER DWAYNE D; PANDIT AJAY. SERVICES MARKETING: INTEGRATING CUSTOMER FOCUS ACROSS THE FIRM. 6TH. MC GRAW HILL EDUCATION, 2016.
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