MACKENZIE, A. (1989). Time For success: Agoal getter'strategy. Mc Graw Hill inc.
Cita Chicago Style (17a ed.)MACKENZIE, Alec. Time For Success: Agoal Getter'strategy. New York: Mc Graw Hill inc, 1989.
Cita MLA (9a ed.)MACKENZIE, Alec. Time For Success: Agoal Getter'strategy. Mc Graw Hill inc, 1989.
Precaución: Estas citas no son 100% exactas.