AAPG Karl W. Stauffer and Rafael Araujo, Maturation Mapping and Geochemical Evaluation of the Ensenada de la Vela Basi, Offshore Falcon State, Venezuela, 1981, Box: 55, Folder: 26. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150638 Accessed June 21, 2025.