"Moving Picture of the Last Ice Age," pp. 188-189, 'Natural History' (April 1957)., 1957

"Moving Picture of the Last Ice Age," pp. 188-189, 'Natural History' (April 1957)., 1957, Box: 6, Folder: 22. Roy Bird Cook (1886-1961), Collector, Papers, A&M 1561. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/50769 Accessed December 19, 2024.