Cite

Map of Boston for 1886.

MLA

Sampson, Murdock, and Co. Map of Boston for 1886. Sampson, Murdock & Co., 0AD. https://collections.library.yale.edu/catalog/15654600.

APA, 6th edition

Sampson, M., & C. (0 C.E.). Map of Boston for 1886. [Maps]. Sampson, Murdock & Co., https://collections.library.yale.edu/catalog/15654600.