APA (7 वां संस्करण) प्रशस्ति पत्र

Gray, D. &. O. (2016). A Critical introduction to Coaching & Mentoring. Sage Publication.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gray, David & Others. A Critical Introduction to Coaching & Mentoring. London: Sage Publication, 2016.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Gray, David & Others. A Critical Introduction to Coaching & Mentoring. Sage Publication, 2016.