APA (7th ed.) Citation

Covey, S. R. 4. (1990). The seven habits of highly effective people: Restoring the character ethic. New York : Fireside Book.

Chicago Style (17th ed.) Citation

Covey, Stephen R. 424860. The Seven Habits of Highly Effective People: Restoring the Character Ethic. New York : Fireside Book, 1990.

MLA (9th ed.) Citation

Covey, Stephen R. 424860. The Seven Habits of Highly Effective People: Restoring the Character Ethic. New York : Fireside Book, 1990.