APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Frohman, Dov, ба 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.

MLA -ийн эшлэл (9 дэх хэвлэлт)

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