Jefferys, Thomas, -1771, Sayer, Robert, and Jean Baptiste Bourguignon d' Anville. "North America." Map. London: Printed for Robt. Sayer in Fleet Street and Thos. Jefferys the corner of St. Martins Lane Charing Cross, [1768]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:q524n452p (accessed April 25, 2024).