Cite

Map of Boston & Bangor Steamship Co. showing approaches to Mount Desert.

MLA

Boston, and Bangor Steamship Company. Map of Boston & Bangor Steamship Co. Showing Approaches to Mount Desert. Rand Avery Supply Co., 0AD. https://collections.library.yale.edu/catalog/15607003.

APA, 6th edition

B., & Company, B. S. (0 C.E.). Map of Boston & Bangor Steamship Co. showing approaches to Mount Desert. [Maps]. Rand Avery Supply Co., https://collections.library.yale.edu/catalog/15607003.