Cook, A. C. (1974): Report on the petrography of a Paleocene brown coal sample from the Ninetyeast Ridge, Indian Ocean. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: von der Borch, Christopher C., Sclater, John G., Gartner, Stefan, Jr., Hekinian, Roger, Johnson, David A., McGowran, Brian, Thompson, Robert W., Veevers, John J., Waterman, Lee S., Pimm, Anthony C. (editor), Initial reports of the Deep Sea Drilling Project, covering Leg 22 of the cruises of the drilling vessel Glomar Challenger; Darwin, Australia to Colombo, Ceylon, January-March 1972, 22, 485-488, georefid:1983-030656