APA (7 वां संस्करण) प्रशस्ति पत्र

NEWELL FREDERICK. (2000). LOYALTY-COM: CUSTOMER RELATIONSHIP MANAGEMENT IN THE NEW ERA OF INTERNET MARKETING. MCGRAW-HILL.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

NEWELL FREDERICK. LOYALTY-COM: CUSTOMER RELATIONSHIP MANAGEMENT IN THE NEW ERA OF INTERNET MARKETING. NEW YORK: MCGRAW-HILL, 2000.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

NEWELL FREDERICK. LOYALTY-COM: CUSTOMER RELATIONSHIP MANAGEMENT IN THE NEW ERA OF INTERNET MARKETING. MCGRAW-HILL, 2000.