Map of New England. New York and Buffalo.
MLA
Map of New England. New York and Buffalo. Ensing and Thayer, 1849. https://collections.library.yale.edu/catalog/15606955.
APA, 6th edition
Map of New England. New York and Buffalo. (1849). [Maps]. Ensing and Thayer, https://collections.library.yale.edu/catalog/15606955.