MLA

Map, Sanborn, and issuing body Publishing Co. Mystic, Conn. 1884. https://collections.library.yale.edu/catalog/11140076.

APA, 6th edition

Map, S., & Publishing Co., issuing body. (1884). Mystic, Conn. [Atlases, Cadastral maps, Connecticut, Fire insurance maps, local, Mystic]. https://collections.library.yale.edu/catalog/11140076.