Microfilm from KU Spencer, "Misc[ellaneous] for Sauer," received, 1977-07-07, Box: 111, Carton: 2. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/205607 Accessed November 24, 2024.