Cita APA
Covey Stephen R. (2004). The 7 habits of highly effective people. Pocket Books.
Citación estilo Chicago
Covey Stephen R. The 7 Habits of Highly Effective People. New York: Pocket Books, 2004.
Cita MLA
Covey Stephen R. The 7 Habits of Highly Effective People. Pocket Books, 2004.
Warning: These citations may not always be 100% accurate.