Cite

A Map of Spencer, Mass. ... by William Baldwin. 1834.

MLA

A Map of Spencer, Mass. ... by William Baldwin. 1834. Pendleton's Lithog., 0AD. https://collections.library.yale.edu/catalog/15654649.

APA, 6th edition

A Map of Spencer, Mass. ... by William Baldwin. 1834. (0 C.E.). [Maps]. Pendleton's Lithog., https://collections.library.yale.edu/catalog/15654649.