1. Thorium Isotopes Method for Dating Marine Sediments;Almodovar,1964
2. Jurassic Geology of the World;Arkell,1956
3. Sediments cores from the East Pacific;Arrhenius;Rept. Swed. Deep-Sea Expedition,1952
4. Planktonic foraminiferal criteria for paleoclimatic zonation;Bandy;Sci. Rept. Tokohu Univ., 2nd Ser., Geol., Spec.,1960