MLA

Sanborn-Perris Map Co., issuing body. Westport and Saugatuck, Fairfield Co., Conn. 1901. https://collections.library.yale.edu/catalog/11676587.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1901). Westport and Saugatuck, Fairfield Co., Conn. [Atlases--Connecticut--Saugatuck--1901, Atlases--Connecticut--Westport--1901, Cadastral maps--Connecticut--Saugatuck--1901, Cadastral maps--Connecticut--Westport--1901, Fire insurance maps--Connecticut--Saugatuck--1901, Fire insurance maps--Connecticut--Westport--1901]. https://collections.library.yale.edu/catalog/11676587.