APA (7 वां संस्करण) प्रशस्ति पत्र

Guptan, S. U. (2006). Mentoring: A practitioner's guide to touching lives. Response Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Guptan, Sunil Unny. Mentoring: A Practitioner's Guide to Touching Lives. New Delhi ; Thousand Oaks, Calif.: Response Books, 2006.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Guptan, Sunil Unny. Mentoring: A Practitioner's Guide to Touching Lives. Response Books, 2006.