MLA

Map, Sanborn, and issuing body Publishing Co. Clinton, Middlesex Co., Conn. 1889. https://collections.library.yale.edu/catalog/11086711.

APA, 6th edition

Map, S., & Publishing Co., issuing body. (1889). Clinton, Middlesex Co., Conn. [Atlases, Cadastral maps, Clinton (Town), Connecticut, Fire insurance maps, local]. https://collections.library.yale.edu/catalog/11086711.