AAPG Frankel, "Distribution of Tertiary Sediments in Zululand and Southern Mozambique, South-East Africa", 1971

AAPG Frankel, "Distribution of Tertiary Sediments in Zululand and Southern Mozambique, South-East Africa", 1971, Box: 55, Folder: 6. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150618 Accessed December 24, 2025.