APA (7e ed.) Bronvermelding

COVEY STEPHEN R. (1997). SEVEN HABITS OF HIGHLY EFFECTIVE PEOPLE. SIMON & SCHUSTER INC.

Chicago (17e ed.) Bronvermelding

COVEY STEPHEN R. SEVEN HABITS OF HIGHLY EFFECTIVE PEOPLE. U.K: SIMON & SCHUSTER INC, 1997.

MLA (9e ed.) Bronvermelding

COVEY STEPHEN R. SEVEN HABITS OF HIGHLY EFFECTIVE PEOPLE. SIMON & SCHUSTER INC, 1997.

Let op: Deze citaties zijn niet altijd 100% accuraat.