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The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "6 type ATB 36-10000 (800 KW .8 P. F.) 200-6600 volt generators. 2 type MPC 8-500-450-240 volt exciters. Volta Plant, Montana Power Co., Great Falls, Montana." The New York Public Library Digital Collections. 1860 - 1920. https://digitalcollections.nypl.org/items/510d47d9-b4e7-a3d9-e040-e00a18064a99
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "6 type ATB 36-10000 (800 KW .8 P. F.) 200-6600 volt generators. 2 type MPC 8-500-450-240 volt exciters. Volta Plant, Montana Power Co., Great Falls, Montana." New York Public Library Digital Collections. Accessed February 7, 2025. https://digitalcollections.nypl.org/items/510d47d9-b4e7-a3d9-e040-e00a18064a99
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. (1860 - 1920). 6 type ATB 36-10000 (800 KW .8 P. F.) 200-6600 volt generators. 2 type MPC 8-500-450-240 volt exciters. Volta Plant, Montana Power Co., Great Falls, Montana. Retrieved from https://digitalcollections.nypl.org/items/510d47d9-b4e7-a3d9-e040-e00a18064a99
<ref name=NYPL>{{cite web | url=https://digitalcollections.nypl.org/items/510d47d9-b4e7-a3d9-e040-e00a18064a99 | title=
(still image)
6 type ATB 36-10000 (800 KW .8 P. F.) 200-6600 volt generators. 2 type MPC 8-500-450-240 volt exciters. Volta Plant, Montana Power Co., Great Falls, Montana., (1860 - 1920)
|author=Digital Collections, The New York Public Library |accessdate=February 7, 2025 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>