Cite

Portland, Middlesex Co., Conn.

MLA

Sanborn Map Company, issuing body. Portland, Middlesex Co., Conn. 1907. https://collections.library.yale.edu/catalog/11593817.

APA, 6th edition

Sanborn Map Company, issuing body. (1907). Portland, Middlesex Co., Conn. [Atlases--Connecticut--Portland--1907, Cadastral maps--Connecticut--Portland--1907, Fire insurance maps--Connecticut--Portland--1907]. https://collections.library.yale.edu/catalog/11593817.