APA (7e ed.) Bronvermelding

Mackenzie, A. (1989). Time for success A Goal getter's strategy. McGraw-Hill inc.

Chicago (17e ed.) Bronvermelding

Mackenzie, Alec. Time for Success A Goal Getter's Strategy. McGraw-Hill inc, 1989.

MLA (8e ed.) Bronvermelding

Mackenzie, Alec. Time for Success A Goal Getter's Strategy. McGraw-Hill inc, 1989.

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