Cite

Morse's cerographic map of Iowa.

MLA

Morse, Charles W. (Charles Walker), 1823-1887. Morse's cerographic map of Iowa.. BRBL_00560. [1856?]. https://collections.library.yale.edu/catalog/15814612.

APA, 6th edition

Morse, Charles W. (Charles Walker), 1823-1887. (["BRBL_00560"])([1856?])[Morse's cerographic map of Iowa.]. https://collections.library.yale.edu/catalog/15814612.