Boeuf, M. L. (2001). Essence of Time Management (12th.). McGraw-Hill Companies.
Chicagoスタイル(17版)引用形式Boeuf, Michael Le. Essence of Time Management. 12th. New Delhi: McGraw-Hill Companies, 2001.
MLA(9版)引用形式Boeuf, Michael Le. Essence of Time Management. 12th. McGraw-Hill Companies, 2001.
警告: この引用は必ずしも正確ではありません.