AAPG Arnold, H.C, The Upper Paleozoic Sabaneta-Palmarito Sequence of the Merida Andes, Venezuela, 1965, Box: 56, Folder: 5. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150677 Accessed June 18, 2025.