Lenglet DuFresnoy, Nicholas, 1798(?) - "Geography for Youth...", Philadelphia, 1798(?), Box: 2, Folder: 94. 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/234128 Accessed June 17, 2025.