Cite

Map o f the United States and Mexico including Oregon, Texas and the Californias.

MLA

Map o f the United States and Mexico Including Oregon, Texas and the Californias. Ensign & Thayer?, 1848. https://collections.library.yale.edu/catalog/15536467.

APA, 6th edition

Map o f the United States and Mexico including Oregon, Texas and the Californias. (1848). [Maps]. Ensign & Thayer?, https://collections.library.yale.edu/catalog/15536467.