APA (7 वां संस्करण) प्रशस्ति पत्र

Harvard Business School. (2008). Harvard. Harvard Busines School.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Harvard Business School. Harvard. Boston: Harvard Busines School, 2008.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Harvard Business School. Harvard. Harvard Busines School, 2008.