Watson, D. A. (1964). Specifications writing for architects and engineers. New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleWatson, Donald A. Specifications Writing for Architects and Engineers. New York: McGraw-Hill Book Company, 1964.
Παραπομπή MLAWatson, Donald A. Specifications Writing for Architects and Engineers. New York: McGraw-Hill Book Company, 1964.
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