Cite

Goodyear's miniature county map of the United States / engraved by J.H. Goldthwait.

MLA

Goldthwait, J. H. Goodyear's Miniature County Map of the United States / Engraved by J.H. Goldthwait. [Goodyear?], 0AD. https://collections.library.yale.edu/catalog/16729336.

APA, 6th edition

Goldthwait, J. H. (0 C.E.). Goodyear's miniature county map of the United States / engraved by J.H. Goldthwait. [Maps]. [Goodyear?], https://collections.library.yale.edu/catalog/16729336.