Cite

Interoceanic ship canal via the Atrato and Truando Rivers.

MLA

Interoceanic Ship Canal via the Atrato and Truando Rivers. Government Printing Office, 1861. https://collections.library.yale.edu/catalog/15822455.

APA, 6th edition

Interoceanic ship canal via the Atrato and Truando Rivers. (1861). [Physical maps]. Government Printing Office, https://collections.library.yale.edu/catalog/15822455.