Addresses; Algal references, reef and reef formation references; The Jurassic algae, references, 1957; Index to Published Bibliography, 1957; Bibliography on the Pennsylvanian and Permian of the Southern Rocky Mountains, Box: 39, Box: 6. J. Harlan Johnson papers, RH MS 735. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/54075 Accessed June 16, 2024.