Cite

Colton's new township map of the western counties of Pennsylvania.

MLA

Colton, G. Woolworth (George Woolworth), 1827-1901. Colton's new township map of the western counties of Pennsylvania.. BRBL_00498. 1866. https://collections.library.yale.edu/catalog/15790133.

APA, 6th edition

Colton, G. Woolworth (George Woolworth), 1827-1901. (["BRBL_00498"])(1866)[Colton's new township map of the western counties of Pennsylvania.]. https://collections.library.yale.edu/catalog/15790133.