American Society of Civil Engineers. Dept. of Professional Activities. (1971). Engineering Issues. American Society of Civil Engineers.
Lua i Stíl Chicago (17ú heag.)American Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. New York: American Society of Civil Engineers, 1971.
Lua MLA (8ú heag.)American Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. American Society of Civil Engineers, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.