Windsor, Hartford County, Connecticut.
MLA
Sanborn Map Company, issuing body. Windsor, Hartford County, Connecticut. 1921. https://collections.library.yale.edu/catalog/11680005.
APA, 6th edition
Sanborn Map Company, issuing body. (1921). Windsor, Hartford County, Connecticut. [Atlases--Connecticut--Windsor--1921, Cadastral maps--Connecticut--Windsor--1921, Fire insurance maps--Connecticut--Windsor--1921]. https://collections.library.yale.edu/catalog/11680005.