Willimantic, Connecticut.
MLA
Map, Sanborn, and issuing body Publishing Co. Willimantic, Connecticut. 1887. https://collections.library.yale.edu/catalog/11679620.
APA, 6th edition
Map, S., & Publishing Co., issuing body. (1887). Willimantic, Connecticut. [Atlases--Connecticut--Willimantic--1887, Cadastral maps--Connecticut--Willimantic--1887, Fire insurance maps--Connecticut--Willimantic--1887]. https://collections.library.yale.edu/catalog/11679620.