APA (7 वां संस्करण) प्रशस्ति पत्र

HARVARD BUSINESS SCHOOL PRESS. (1991). MANAGERS AS LEADERS. HARVARD BUSINESS REVIEW SCHOOL.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

HARVARD BUSINESS SCHOOL PRESS. MANAGERS AS LEADERS. BOSTAN: HARVARD BUSINESS REVIEW SCHOOL, 1991.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

HARVARD BUSINESS SCHOOL PRESS. MANAGERS AS LEADERS. HARVARD BUSINESS REVIEW SCHOOL, 1991.