APA (7 वां संस्करण) प्रशस्ति पत्र

Frohman, D., & Howard, R. (2008). Leadership the hard way: Why leadership can't be taught and how you can learn it anyway. Jossey-Bass.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Frohman, Dov, और Robert Howard. Leadership the Hard Way: Why Leadership Can't Be Taught and How You Can Learn It Anyway. San Francisco, CA: Jossey-Bass, 2008.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Frohman, Dov, और Robert Howard. Leadership the Hard Way: Why Leadership Can't Be Taught and How You Can Learn It Anyway. Jossey-Bass, 2008.