(26) Post-800 Introduction - Great Britain ["An Introduction to the Birds of Great Britain", post 800), Box: 17, Folder: 6. 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/205893 Accessed December 30, 2024.