MLA

Sanborn-Perris Map Co., issuing body. Insurance Maps of New Britain, Hartford Co., Connecticut. 1895. https://collections.library.yale.edu/catalog/11175779.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1895). Insurance maps of New Britain, Hartford Co., Connecticut. [Atlases, Cadastral maps, Connecticut, Fire insurance maps, local, New Britain]. https://collections.library.yale.edu/catalog/11175779.