APA (7 वां संस्करण) प्रशस्ति पत्र

GRIFFIN JILL. (2002). CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. SAN FRANCISCO: JOSSEY-BASS PUBLICATIONS, 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS, 2002.