MLA

Sanborn-Perris Map Co., issuing body. Bethel, Fairfield Co., Conn. 1901. https://collections.library.yale.edu/catalog/11034868.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1901). Bethel, Fairfield Co., Conn. [Atlases, Bethel, Cadastral maps, Connecticut, Fire insurance maps, local]. https://collections.library.yale.edu/catalog/11034868.