Dittmers, R. E. (2006). 151 quick ideas to manage your time. Franklin Lakes, NJ: The Career Press.
Παραπομπή Chicago StyleDittmers, Robert E. 151 Quick Ideas to Manage Your Time. Franklin Lakes, NJ: The Career Press, 2006.
Παραπομπή MLADittmers, Robert E. 151 Quick Ideas to Manage Your Time. Franklin Lakes, NJ: The Career Press, 2006.
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