Torrington, Litchfield County, Connecticut.
MLA
Sanborn Map Company, issuing body. Torrington, Litchfield County, Connecticut. 1931. https://collections.library.yale.edu/catalog/11674900.
APA, 6th edition
Sanborn Map Company, issuing body. (1931). Torrington, Litchfield County, Connecticut. [Atlases--Connecticut--Torrington--1931, Cadastral maps--Connecticut--Torrington--1931, Fire insurance maps--Connecticut--Torrington--1931]. https://collections.library.yale.edu/catalog/11674900.