Cite

Colton's Connecticut : with portions of New York & Rhode Island.

MLA

G. W., et al. Colton's Connecticut : with Portions of New York & Rhode Island. G.W. and C.B. Colton, 1868. https://collections.library.yale.edu/catalog/15654729.

APA, 6th edition

G. W., Colton, C. B., & C. (1868). Colton's Connecticut : with portions of New York & Rhode Island. [Maps]. G.W. and C.B. Colton, https://collections.library.yale.edu/catalog/15654729.