Kansas Ornithological Society Bulletin, v. 25, n. 2-3; v. 27, n. 3; v. 30, n. 4; v. 32, n. 3-4; v. 35, n. 3, 1974 - 1984, Box: 7, Folder: 19. John and Frances Peterson collection, RH MS 1330. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/195370 Accessed May 17, 2024.