Seymour, New Haven County, Connecticut.
MLA
Sanborn Map Company, issuing body. Seymour, New Haven County, Connecticut. 1911. https://collections.library.yale.edu/catalog/11622327.
APA, 6th edition
Sanborn Map Company, issuing body. (1911). Seymour, New Haven County, Connecticut. [Atlases--Connecticut--Seymour--1911, Cadastral maps--Connecticut--Seymour--1911, Fire insurance maps--Connecticut--Seymour--1911]. https://collections.library.yale.edu/catalog/11622327.