MLA

Sanborn-Perris Map Co., issuing body. Insurance Maps of Willimantic, Windham Co., Connecticut. 1892. https://collections.library.yale.edu/catalog/11679621.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1892). Insurance maps of Willimantic, Windham Co., Connecticut. [Atlases--Connecticut--Willimantic--1892, Cadastral maps--Connecticut--Willimantic--1892, Fire insurance maps--Connecticut--Willimantic--1892]. https://collections.library.yale.edu/catalog/11679621.