Covey, S. R. (2001). The 7 habits of highly effective people (Unabridged.). Simon & Schuster Audio.
Style de citation Chicago (17e éd.)Covey, Stephen R. The 7 Habits of Highly Effective People. Unabridged. New York: Simon & Schuster Audio, 2001.
Style de citation MLA (8e éd.)Covey, Stephen R. The 7 Habits of Highly Effective People. Unabridged. Simon & Schuster Audio, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.