Chart of the harbours of Salem, Marblehead, Beverly and Manchester ... 1804, 5&6 by Nathl. Bowditch Am. AAS ... 1806.
MLA
Chart of the Harbours of Salem, Marblehead, Beverly and Manchester ... 1804, 5&6 by Nathl. Bowditch Am. AAS ... 1806. 0AD. https://collections.library.yale.edu/catalog/15654670.
APA, 6th edition
Chart of the harbours of Salem, Marblehead, Beverly and Manchester ... 1804, 5&6 by Nathl. Bowditch Am. AAS ... 1806. (0 C.E.). [Maps]. https://collections.library.yale.edu/catalog/15654670.