MLA

Map of Massachusetts, Rhode-Island & Connecticut : Compiled from the Latest Authorities / Engraved by J. Wells. A.F. Wilcox & Co. ;, C. Shepard,, Light & Stearns ; 1837. https://collections.library.yale.edu/catalog/15639974.

APA, 6th edition

Map of Massachusetts, Rhode-Island & Connecticut : compiled from the latest authorities / engraved by J. Wells. (1837). [Maps]. A.F. Wilcox & Co. ;, C. Shepard,, Light & Stearns ; https://collections.library.yale.edu/catalog/15639974.