Guthrie, William, 1792 - "A New System of Modern Geography...", 5th ed, London, 1792, Box: 2, Folder: 56. 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/234085 Accessed June 14, 2025.