Compte Rendu Sommaire Des Seances de la Societe Geologique de France, 1966, 1960, 1961, Box: 9, Folder: 32. J. Harlan Johnson papers, RH MS 735. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/52938 Accessed July 19, 2025.