"Nature Magazines - Birds, Texas, Endangered Species" various magazine articles [oversize removed to RH MS R359 Folder 8], 1974 - 1998, Box: 7, Folder: 49. John and Frances Peterson collection, RH MS 1330. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/195400 Accessed November 23, 2024.