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The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Propeller engine constructed at Bella Vista. Boiler returning tubes between the two furnaces." The New York Public Library Digital Collections. 1868. https://digitalcollections.nypl.org/items/4b59e8c0-c547-0134-e008-00505686a51c
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Propeller engine constructed at Bella Vista. Boiler returning tubes between the two furnaces." New York Public Library Digital Collections. Accessed January 30, 2025. https://digitalcollections.nypl.org/items/4b59e8c0-c547-0134-e008-00505686a51c
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. (1868). Propeller engine constructed at Bella Vista. Boiler returning tubes between the two furnaces. Retrieved from https://digitalcollections.nypl.org/items/4b59e8c0-c547-0134-e008-00505686a51c
<ref name=NYPL>{{cite web | url=https://digitalcollections.nypl.org/items/4b59e8c0-c547-0134-e008-00505686a51c | title=
(still image)
Propeller engine constructed at Bella Vista. Boiler returning tubes between the two furnaces., (1868)|author=Digital Collections, The New York Public Library |accessdate=January 30, 2025 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>