Boeuf, M. L. (2001). Essence of Time Management (12th.). McGraw-Hill Companies.
Chicago (17e ed.) BronvermeldingBoeuf, Michael Le. Essence of Time Management. 12th. New Delhi: McGraw-Hill Companies, 2001.
MLA (9e ed.) BronvermeldingBoeuf, Michael Le. Essence of Time Management. 12th. McGraw-Hill Companies, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.