MLA

Sanborn-Perris Map Co., issuing body. Newtown, Fairfield Co., Conn. 1895. https://collections.library.yale.edu/catalog/11580134.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1895). Newtown, Fairfield Co., Conn. [Atlases--Connecticut--Newtown--1895, Cadastral maps--Connecticut--Newtown--1895, Fire insurance maps--Connecticut--Newtown--1895]. https://collections.library.yale.edu/catalog/11580134.