Egan, J. (2001). Relationship marketing: Exploring relational strategies in marketing. Financial Times/Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEgan, John. Relationship Marketing: Exploring Relational Strategies in Marketing. Harlow, Eng: Financial Times/Prentice-Hall, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEgan, John. Relationship Marketing: Exploring Relational Strategies in Marketing. Financial Times/Prentice-Hall, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.