Covey, S. R. (2004). The 7 Habits of Highly Effective People. Pocket Books.
Citación estilo ChicagoCovey, Stephen R. The 7 Habits of Highly Effective People. Pocket Books, 2004.
Cita MLACovey, Stephen R. The 7 Habits of Highly Effective People. Pocket Books, 2004.
Warning: These citations may not always be 100% accurate.