(1956). Journal of Professional Issues in Engineering Education and Practice. New York: Am Soc Civil Eng.
Παραπομπή Chicago StyleJournal of Professional Issues in Engineering Education and Practice. New York: Am Soc Civil Eng, 1956.
Παραπομπή MLAJournal of Professional Issues in Engineering Education and Practice. New York: Am Soc Civil Eng, 1956.
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