Κονταράτος, Α. Ν. (1989). In search of meaning and purpose. Washington, D.C.: The George Washington University , School of engineering and Applied Science. Department of Engineering Administration.
Παραπομπή Chicago StyleΚονταράτος, Αντώνιος Νικ. In Search of Meaning and Purpose. Washington, D.C.: The George Washington University , School of engineering and Applied Science. Department of Engineering Administration, 1989.
Παραπομπή MLAΚονταράτος, Αντώνιος Νικ. In Search of Meaning and Purpose. Washington, D.C.: The George Washington University , School of engineering and Applied Science. Department of Engineering Administration, 1989.
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