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Photographs of the Catskill water supply system in process of construction
General Research Division, The New York Public Library. "Aerators. View looking towards Ashokan Screen chamber showing aerator with all nozzles in operation with a flow of 376 million gallons daily. Contract 10. June 18, 1917." The New York Public Library Digital Collections. 1918. https://qa-digitalcollections.nypl.org/items/510d47da-de0d-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. "Aerators. View looking towards Ashokan Screen chamber showing aerator with all nozzles in operation with a flow of 376 million gallons daily. Contract 10. June 18, 1917." New York Public Library Digital Collections. Accessed December 4, 2024. https://qa-digitalcollections.nypl.org/items/510d47da-de0d-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. (1918). Aerators. View looking towards Ashokan Screen chamber showing aerator with all nozzles in operation with a flow of 376 million gallons daily. Contract 10. June 18, 1917. Retrieved from https://qa-digitalcollections.nypl.org/items/510d47da-de0d-a3d9-e040-e00a18064a99
<ref name=NYPL>{{cite web | url=https://qa-digitalcollections.nypl.org/items/510d47da-de0d-a3d9-e040-e00a18064a99 | title=
(still image)
Aerators. View looking towards Ashokan Screen chamber showing aerator with all nozzles in operation with a flow of 376 million gallons daily. Contract 10. June 18, 1917., (1918)|author=Digital Collections, The New York Public Library |accessdate=December 4, 2024 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>