Map of the American colonies and adjacent country as known in 1776 / compiled by permission of the American Geographical Society, New York from works in their possession and presented to its patrons by the Baltimore and Ohio Railroad Co. ; drawn, engraved
MLA
Asher, and Adams. Map of the American Colonies and Adjacent Country as Known in 1776 / Compiled by Permission of the American Geographical Society, New York from Works in Their Possession and Presented to Its Patrons by the Baltimore and Ohio Railroad Co. ; Drawn, Engraved. Asher and Adams, 0AD. https://collections.library.yale.edu/catalog/15825290.
APA, 6th edition
A., & A. (0 C.E.). Map of the American colonies and adjacent country as known in 1776 / compiled by permission of the American Geographical Society, New York from works in their possession and presented to its patrons by the Baltimore and Ohio Railroad Co. ; drawn, engraved [Maps]. Asher and Adams, https://collections.library.yale.edu/catalog/15825290.