Guthrie, William, 1786 - "A New System of Modern Geography...", 3rd ed, London, 1786, Box: 2A, Folder: 38. Research papers gathered for A Carto-Bibliography of the Maps in Eighteenth-Century English and American Geography Books, MS 287. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/234342 Accessed February 26, 2025.