British Museum (Natural History). Ann Datta, 1994 visit, 1995 - 1996, Box: 15, Folder: 18-22. 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/205832 Accessed November 28, 2024.