Cite

Map of the territories of Michigan and Ouisconsin on a scale of 30 geographical miles to an inch by John Farmer of Detroit, Engraved by Rawdon Clark & Co., Albany, NY.

MLA

Map of the Territories of Michigan and Ouisconsin on a Scale of 30 Geographical Miles to an Inch by John Farmer of Detroit, Engraved by Rawdon Clark & Co., Albany, NY. John Farmer,], 1830. https://collections.library.yale.edu/catalog/15604166.

APA, 6th edition

Map of the territories of Michigan and Ouisconsin on a scale of 30 geographical miles to an inch by John Farmer of Detroit, Engraved by Rawdon Clark & Co., Albany, NY. (1830). [Maps]. John Farmer,]. https://collections.library.yale.edu/catalog/15604166.