APA (7. basım) Alıntı

Covey, S. R. (2002). First Things First. Pocket Books Ltd.

Chicago Style (17. basım) Atıf

Covey, Stephen R. First Things First. London: Pocket Books Ltd, 2002.

MLA (9th ed.) Atıf

Covey, Stephen R. First Things First. Pocket Books Ltd, 2002.