APA (7e ed.) Bronvermelding

Covey, S. R. (2020). 7 Habits of Highly Effective People. Simon and Schuster.

Chicago (17e ed.) Bronvermelding

Covey, Stephen R. 7 Habits of Highly Effective People. New Delhi: Simon and Schuster, 2020.

MLA (9e ed.) Bronvermelding

Covey, Stephen R. 7 Habits of Highly Effective People. Simon and Schuster, 2020.