Payne Adrian. (1995). Relationship marketing for competitive advantage: Winning and keeping customers. Butterworth-Heinemann.
Παραπομπή σε μορφή Chicago (17η εκδ.)Payne Adrian. Relationship Marketing for Competitive Advantage: Winning and Keeping Customers. Butterworth-Heinemann, 1995.
Παραπομπή σε μορφή MLA (8th εκδ.)Payne Adrian. Relationship Marketing for Competitive Advantage: Winning and Keeping Customers. Butterworth-Heinemann, 1995.
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