Map and profile of the route for the construction of a ship canal between the Pacific and Atlantic oceans / A McDougal, Chief Engineer, C.A. Sweet Principal Ass't.
MLA
Map and Profile of the Route for the Construction of a Ship Canal between the Pacific and Atlantic Oceans / A McDougal, Chief Engineer, C.A. Sweet Principal Ass't. Govt. Printing Office, 1864. https://collections.library.yale.edu/catalog/15822424.
APA, 6th edition
Map and profile of the route for the construction of a ship canal between the Pacific and Atlantic oceans / A McDougal, Chief Engineer, C.A. Sweet Principal Ass't. (1864). [Maps]. Govt. Printing Office, https://collections.library.yale.edu/catalog/15822424.
