Cite

Phelps & Watson's historical and military map of the border & southern states.

MLA

Phelps, and Watson. Phelps & Watson's Historical and Military Map of the Border & Southern States. Gaylord Watson, 1867. https://collections.library.yale.edu/catalog/15603784.

APA, 6th edition

P., & W. (1867). Phelps & Watson's historical and military map of the border & southern states. [Maps]. Gaylord Watson, https://collections.library.yale.edu/catalog/15603784.