Int[ernational] [Sub]comm[ission] [on] Strat[igraphy] (general) 1959-1964, Box: 7, Folder: 1-3. Personal papers of Raymond C. Moore, PP 3. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/167588 Accessed May 16, 2024.