Mead, D. W. (1956). Contracts, specifications and engineering relations (3rd ed.). New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleMead, Daniel W. Contracts, Specifications and Engineering Relations. 3rd ed. New York: McGraw-Hill Book Company, 1956.
Παραπομπή MLAMead, Daniel W. Contracts, Specifications and Engineering Relations. 3rd ed. New York: McGraw-Hill Book Company, 1956.
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