Jefferys, Thomas, -1771. "A correct plan of the environs of Quebec, and of the battle fought on the 13th September, 1759." Map. London: Thos. Jefferys, the corner of St. Martins Lane Charing Cross, [1768]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:q524n4661 (accessed April 16, 2024).