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Manuscripts and Archives Division, The New York Public Library. "Harvey Gibson presenting model of Trylon and Perisphere to three blind children" The New York Public Library Digital Collections. 1935 - 1945. https://digitalcollections.nypl.org/items/5e66b3e8-caf9-d471-e040-e00a180654d7
Manuscripts and Archives Division, The New York Public Library. "Harvey Gibson presenting model of Trylon and Perisphere to three blind children" New York Public Library Digital Collections. Accessed January 31, 2025. https://digitalcollections.nypl.org/items/5e66b3e8-caf9-d471-e040-e00a180654d7
Manuscripts and Archives Division, The New York Public Library. (1935 - 1945). Harvey Gibson presenting model of Trylon and Perisphere to three blind children Retrieved from https://digitalcollections.nypl.org/items/5e66b3e8-caf9-d471-e040-e00a180654d7
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(still image)
Harvey Gibson presenting model of Trylon and Perisphere to three blind children, (1935 - 1945)|author=Digital Collections, The New York Public Library |accessdate=January 31, 2025 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>