MLA

Sanborn Map Company, issuing body. Sandy Hook, Fairfield County, Connecticut. 1910. https://collections.library.yale.edu/catalog/11605575.

APA, 6th edition

Sanborn Map Company, issuing body. (1910). Sandy Hook, Fairfield County, Connecticut. [Atlases--Connecticut--Newtown--Sandy Hook--1910, Cadastral maps--Connecticut--Newtown--Sandy Hook--1910, Fire insurance maps--Connecticut--Newtown--Sandy Hook--1910]. https://collections.library.yale.edu/catalog/11605575.