APA (7 वां संस्करण) प्रशस्ति पत्र

DeLong, T. (2019). Teaching by Heart: One Professor's Journey to Inspire. Harvard Business Review Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

DeLong, Thomas. Teaching by Heart: One Professor's Journey to Inspire. Boston, Massachesutts: Harvard Business Review Press, 2019.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

DeLong, Thomas. Teaching by Heart: One Professor's Journey to Inspire. Harvard Business Review Press, 2019.