Kenneth Spencer Research Library Archival Collections
Part of the University of Kansas. Kenneth Spencer Research Library Repository
AAPG Hubbert, Petroleum Explorer, Box: 56, Folder: 17. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library.
AAPG Hubbert, Petroleum Explorer, Box: 56, Folder: 17. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150689 Accessed December 24, 2025.
