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General Research Division, The New York Public Library. "No. 69. Sections illustrating the gradual denudation of the Weald Valley." The New York Public Library Digital Collections. 1830 - 1833. https://digitalcollections.nypl.org/items/510d47dd-ce68-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. "No. 69. Sections illustrating the gradual denudation of the Weald Valley." New York Public Library Digital Collections. Accessed January 29, 2025. https://digitalcollections.nypl.org/items/510d47dd-ce68-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. (1830 - 1833). No. 69. Sections illustrating the gradual denudation of the Weald Valley. Retrieved from https://digitalcollections.nypl.org/items/510d47dd-ce68-a3d9-e040-e00a18064a99
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No. 69. Sections illustrating the gradual denudation of the Weald Valley., (1830 - 1833)
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