Cita APA (7a ed.)

Covey, S. (1997). The 7 habits of highly effective families. Simon & Schuster.

Cita Chicago Style (17a ed.)

Covey, Stephen. The 7 Habits of Highly Effective Families. New York: Simon & Schuster, 1997.

Cita MLA (9a ed.)

Covey, Stephen. The 7 Habits of Highly Effective Families. Simon & Schuster, 1997.