MLA

Sanborn-Perris Map Co., issuing body. Westport, Fairfield Co., Conn. 1896. https://collections.library.yale.edu/catalog/11676586.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1896). Westport, Fairfield Co., Conn. [Atlases--Connecticut--Westport--1896, Cadastral maps--Connecticut--Westport--1896, Fire insurance maps--Connecticut--Westport--1896]. https://collections.library.yale.edu/catalog/11676586.