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General Research Division, The New York Public Library. "Science and mathematics: observatory of Oranienberg; observatory of Delhi; figures produced by geometric turning-lathe" The New York Public Library Digital Collections. 1858. https://digitalcollections.nypl.org/items/510d47d9-c751-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. "Science and mathematics: observatory of Oranienberg; observatory of Delhi; figures produced by geometric turning-lathe" New York Public Library Digital Collections. Accessed April 16, 2024. https://digitalcollections.nypl.org/items/510d47d9-c751-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. (1858). Science and mathematics: observatory of Oranienberg; observatory of Delhi; figures produced by geometric turning-lathe Retrieved from https://digitalcollections.nypl.org/items/510d47d9-c751-a3d9-e040-e00a18064a99
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Science and mathematics: observatory of Oranienberg; observatory of Delhi; figures produced by geometric turning-lathe, (1858)
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