Ledbetter, Michael T. (1986): Late Pleistocene tephrochronology of Pigmy Basin, Deep Sea Drilling Project Site 619, Leg 96. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Bouma, Arnold H., Coleman, James M., Brooks, James M., Bryant, William R., Constans, Richard E., Cremer, Michel, Droz, Laurence I., Ishizuka, Toshio, Kennicutt, Mahlon C., II, Kohl, Barry, Meyer, Audrey W., Normark, William R., O'Connell, Suzanne, Parker, Mary E., Pickering, Kevin T., Schroeder, Claudia J., Stelting, Charles E., Stow, Dorrik A. V., Sweet, William E., Wetzel, Andreas, Whelan, Jean K., Turner, Katie L. (editor), Initial reports of the Deep Sea Drilling Project covering Leg 96 of the cruises of the drilling vessel Glomar Challenger, Ft. Lauderdale, Florida, to Galveston, Texas, September-November, 1983, 96, 685-688, georefid:1987-006074