APA (7th ed.) Citation

Covey. (1990). Principle-centered leadership. A Fireside Book.

Chicago Style (17th ed.) Citation

Covey. Principle-centered Leadership. New York: A Fireside Book, 1990.

MLA (8th ed.) Citation

Covey. Principle-centered Leadership. A Fireside Book, 1990.

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