Cite

Map of the Boston & Lowell Railroad System : with its principal connections.

MLA

Co, Rand Avery Supply. Map of the Boston & Lowell Railroad System : with Its Principal Connections. Rand Avery Supply Co., 1885. https://collections.library.yale.edu/catalog/15603796.

APA, 6th edition

Co, R. A. S. (1885). Map of the Boston & Lowell Railroad System : with its principal connections. [Maps]. Rand Avery Supply Co., https://collections.library.yale.edu/catalog/15603796.