American Society of Civil Engineers. Dept. of Professional Activities. (1971). Engineering Issues. American Society of Civil Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. New York: American Society of Civil Engineers, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)American Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. American Society of Civil Engineers, 1971.
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