APA Alıntı

Covey,Stephen R. (2004). 7 Habits of higly effective people. Pocket books.

Chicago Stili Alıntı

Covey,Stephen R. 7 Habits of Higly Effective People. London: Pocket books, 2004.

MLA Alıntı

Covey,Stephen R. 7 Habits of Higly Effective People. Pocket books, 2004.