Gaya APA

COVEY, S, R., MERRILL, A, R. (1994). First things first: to live, to love, to learn, to leave a legacy . New York: Simon & Schuster Inc..

Gaya MLA

COVEY, Stephen, R.., MERRILL, A., Roger. "First things first: to live, to love, to learn, to leave a legacy". New York: Simon & Schuster Inc., 1994. Text.