1956 Int[ernational] Geol[ogical] Cong[ress] env[elope] 1, John Rodgers, Int[ernational] Comm[ission] [on] Strat[igraphy] to incl[ude] part of 1953, Box: 7, Folder: 36-37. Personal papers of Raymond C. Moore, PP 3. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/167605 Accessed April 01, 2025.