Boeuf, M. L. (2001). Essence of Time Management. Jaico Publishing House.
Lua i Stíl Chicago (17ú heag.)Boeuf, Michael Le. Essence of Time Management. Mumbai: Jaico Publishing House, 2001.
Lua MLA (9ú heag.)Boeuf, Michael Le. Essence of Time Management. Jaico Publishing House, 2001.
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