MLA

Map, Sanborn, and issuing body Publishing Co. Colchester, Conn. 0AD. https://collections.library.yale.edu/catalog/16044030.

APA, 6th edition

Map, S., & Publishing Co., issuing body. (0 C.E.). Colchester, Conn. [Atlases., Cadastral maps., Fire insurance maps.]. https://collections.library.yale.edu/catalog/16044030.