Cite

Watson's new commercial county and rail road map of the north-western states.

MLA

Watson, Gaylord. Watson's New Commercial County and Rail Road Map of the North-Western States. Gaylord Watson], 1875. https://collections.library.yale.edu/catalog/15812961.

APA, 6th edition

Watson, G. (1875). Watson's new commercial county and rail road map of the north-western states. [Maps]. Gaylord Watson], https://collections.library.yale.edu/catalog/15812961.