Cite

Map of the western states / drawn & engraved by J.M. Atwood.

MLA

Atwood, John M., b. ca. 1818. Map of the western states / drawn & engraved by J.M. Atwood.. BRBL_00533. 1848. https://collections.library.yale.edu/catalog/15812929.

APA, 6th edition

Atwood, John M., b. ca. 1818. (["BRBL_00533"])(1848)[Map of the western states / drawn & engraved by J.M. Atwood.]. https://collections.library.yale.edu/catalog/15812929.