1 1956 Int[ernational] Geol[ogical] Cong[ress] L.B. Kellum, Int[ernational] Comm[ission] [on] Strat[igraphy] cretaceous symposium, Box: 7, Folder: 26-28. Personal papers of Raymond C. Moore, PP 3. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/167599 Accessed April 28, 2024.