Role of Methanian Geology and Methane Generation and Petroleum Migration - Old Prints, Extra Prints, Early Drafts, and Correspondence on Illustrations Used in Uppsala and in Oklahoma City. Extra Slides From Driver, Worxel, Etc, Box: 82, Folder: 13. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/151378 Accessed November 24, 2024.