MLA

Colton, G. Woolworth (George Woolworth), 1827-1901. Colton's railroad & township map of the state of Ohio / drawn by George W. Colton ; engraved by J.M. Atwood.. BRBL_00543. 1852. https://collections.library.yale.edu/catalog/15814340.

APA, 6th edition

Colton, G. Woolworth (George Woolworth), 1827-1901. (["BRBL_00543"])(1852)[Colton's railroad & township map of the state of Ohio / drawn by George W. Colton ; engraved by J.M. Atwood.]. https://collections.library.yale.edu/catalog/15814340.