Cite

Gunn's new map of Kansas and the gold mines

MLA

Gunn, O. B. (Otis Berthoude), 1828-1901. Gunn's new map of Kansas and the gold mines. 1859. https://collections.library.yale.edu/catalog/2011849.

APA, 6th edition

Gunn, O. B. (Otis Berthoude), 1828-1901. (1859)[Gunn's new map of Kansas and the gold mines]. https://collections.library.yale.edu/catalog/2011849.