MLA

Sanborn-Perris Map Co., issuing body. Thompsonville, Hartford County, Connecticut. 1892. https://collections.library.yale.edu/catalog/11672627.

APA, 6th edition

Sanborn-Perris Map Co., issuing body. (1892). Thompsonville, Hartford County, Connecticut. [Atlases--Connecticut--Thompsonville--1892, Cadastral maps--Connecticut--Thompsonville--1892, Fire insurance maps--Connecticut--Thompsonville--1892]. https://collections.library.yale.edu/catalog/11672627.