Whitmarsh, R. B.; Weser, O. E.; Ali, S.; Boudreaux, J. E.; Fleisher, R. L.; Jipa, D.; Kidd, R. B.; Mallik, T. K.; Matter, A.; Nigrini, C.; Siddiquie, H. N.; Stoffers, P.; Coleman, R.; Hamilton, N. (1974): Site 220. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 23 (Colombo, Ceylon to Djibouti, F.T.A.I., March-May 1972), 117-166, georefid:1976-013252