Cite

A map of part of the N.W. Territory of the United States ... by Samuel Lewis, 1796.

MLA

A Map of Part of the N.W. Territory of the United States ... by Samuel Lewis, 1796. 1796. https://collections.library.yale.edu/catalog/15604326.

APA, 6th edition

A map of part of the N.W. Territory of the United States ... by Samuel Lewis, 1796. (1796). [Maps]. https://collections.library.yale.edu/catalog/15604326.