AAPG Leyden, Ludwig, and Ewing, Continental Margin off Uruguay and Brazil, February 1971

AAPG Leyden, Ludwig, and Ewing, Continental Margin off Uruguay and Brazil, February 1971, Box: 56, Folder: 51. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150723 Accessed December 25, 2025.