John H. Gregory
- Sewage Disposal. In: Transactions of the American Society of Civil Engineers, v. 57, n. 2 (Dezember 1906). (1906):
- The Improved Water and Sewage Works of Columbus, Ohio. In: Transactions of the American Society of Civil Engineers, v. 67, n. 2 (Juni 1910). (1910):
- The O’Shaughnessy Dam and Reservoir. In: Transactions of the American Society of Civil Engineers, v. 93, n. 1 ( 1929). (1929):
- Intercepting Sewers and Storm Stand-By Tanks at Columbus, Ohio. In: Transactions of the American Society of Civil Engineers, v. 99, n. 1 ( 1934). (1934):