Percival, Stephen F., Jr. (1984): Late Cretaceous to Pleistocene calcareous nannofossils from the South Atlantic, Deep Sea Drilling Project Leg 73. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Hsue, Kenneth J., LaBrecque, John L., Carman, Max F., Jr., Gombos, Andrew M., Jr., Karpoff, Anne-Marie, McKenzie, Judith A., Percival, Stephen F., Jr., Petersen, Nikolai P., Pisciotto, Kenneth A., Poore, Richard Z., Schreiber, Edward, Tauxe, Lisa, Tucker, Peter, Weissert, Helmut J., Bailey, Marian G. (editor), Initial reports of the Deep Sea Drilling Project covering Leg 73 of the cruises of the drilling vessel Glomar Challenger, Santos, Brazil to Cape Town, South Africa, April to June, 1980, 73, 391-424, georefid:1984-038142