^Hall, Ellen L. “Hydraulics in the Golden Age of Sanitary Engineering: The Life of Allen Hazen.” Presented at the Darcy Memorial Symposium on the History of Hydraulics. Philadelphia, PA. June 23-6, 2003. [1]نسخة محفوظة 14 ديسمبر 2012 at Archive.is
^Brown, Edward S. (1995). “The Hanover Water Works Company: One Hundred Years of Service.” Dartmouth College Library Bulletin. April. [2]نسخة محفوظة 2 مايو 2016 على موقع واي باك مشين.
