Cita APA

Covey, S. R. 1., Merrill, A. R., & Merrill, R. R. (1994). First things first: To live, to love, to learn, to leave a legacy. New York: Simon & Schuster.

Citación estilo Chicago

Covey, Stephen R. 1932-, A. Roger Merrill, y Rebecca R. Merrill. First Things First: To Live, to Love, to Learn, to Leave a Legacy. New York: Simon & Schuster, 1994.

Cita MLA

Covey, Stephen R. 1932-, A. Roger Merrill, y Rebecca R. Merrill. First Things First: To Live, to Love, to Learn, to Leave a Legacy. New York: Simon & Schuster, 1994.