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Tohutoru Kātū Chicago (17th ed.)Hoover Dam 75th Anniversary History Symposium Las Vegas, Nev., American Society of Civil Engineers. Committee on History and Heritage of American Civil Engineering, Inc ebrary, David R. Gilbert, Jerry R. Rogers, me Richard L. Wiltshire. Hoover Dam 75th Anniversary History Symposium: Proceedings of the Hoover Dam 75th Anniversary History Symposium, October 21-22, 2010, Las Vegas, Nevada. Reston, Va.: American Society of Civil Engineers, 2011.
Tohutoro MLA (9th ed.)Hoover Dam 75th Anniversary History Symposium Las Vegas, Nev., et al. Hoover Dam 75th Anniversary History Symposium: Proceedings of the Hoover Dam 75th Anniversary History Symposium, October 21-22, 2010, Las Vegas, Nevada. American Society of Civil Engineers, 2011.