Burton, Charles, active 1823-1839, Murray, John, Day & Haghe, and Viscount Robert Jocelyn Jocelyn. "Gulf of Pechelee, China, Great Wall and town of Shaw-hai-wei in lat. 40.4 N. - lon. 120.2 E." Print. Albemarle: John Murray, 1841. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:ht250b65z (accessed August 15, 2022).