APA (7th ed.) Citation

Nanus, B. (1989). The leader's edge: The seven keys to leadership in a turbulent world. Contemporary Books.

Chicago Style (17th ed.) Citation

Nanus, Burt. The Leader's Edge: The Seven Keys to Leadership in a Turbulent World. Chicago: Contemporary Books, 1989.

MLA (9th ed.) Citation

Nanus, Burt. The Leader's Edge: The Seven Keys to Leadership in a Turbulent World. Contemporary Books, 1989.

Warning: These citations may not always be 100% accurate.