"List of Works on Ornithology, Etc, John Gould, F.R.S, Etc.", Box: 62, Folder: 8. 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/206285 Accessed July 26, 2024.