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Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "Map of the district through which passes the contemplated Mississippi and Lake Pontchartrain Canal " The New York Public Library Digital Collections. 1827. https://qa-digitalcollections.nypl.org/items/16d1cbc0-2225-0135-e5ea-331edd42d5fe
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "Map of the district through which passes the contemplated Mississippi and Lake Pontchartrain Canal " New York Public Library Digital Collections. Accessed November 25, 2024. https://qa-digitalcollections.nypl.org/items/16d1cbc0-2225-0135-e5ea-331edd42d5fe
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. (1827). Map of the district through which passes the contemplated Mississippi and Lake Pontchartrain Canal Retrieved from https://qa-digitalcollections.nypl.org/items/16d1cbc0-2225-0135-e5ea-331edd42d5fe
<ref name=NYPL>{{cite web | url=https://qa-digitalcollections.nypl.org/items/16d1cbc0-2225-0135-e5ea-331edd42d5fe | title=
(cartographic)
Map of the district through which passes the contemplated Mississippi and Lake Pontchartrain Canal , (1827)
|author=Digital Collections, The New York Public Library |accessdate=November 25, 2024 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>