Cronan, D. S. (1973): Manganese nodules in sediments cored during Leg 16, Deep Sea Drilling Project. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 16 (San Cristobal, Panama, to Honolulu, Hawaii; Feb.-March 1971), 605-608, georefid:1976-016547