Cite

Map of New York, Philadelphia, Baltimore and Boston

MLA

Disturnell, John, 1801-1877. Map of New York, Philadelphia, Baltimore and Boston. 1851. https://collections.library.yale.edu/catalog/2006858.

APA, 6th edition

Disturnell, John, 1801-1877. (1851)[Map of New York, Philadelphia, Baltimore and Boston]. https://collections.library.yale.edu/catalog/2006858.