Zimmerman, Herman B. (1982): Lithologic stratigraphy and clay mineralogy of the western Caribbean and eastern Equatorial Pacific, Leg 68, Deep Sea Drilling Project. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Prell, Warren L., Gardner, James V., Adelseck, Charles G., Blechschmidt, Gretchen, Fleet, Andrew J., Keigwin, Lloyd D., Jr., Kent, Dennis V., Ledbetter, Michael T., Mann, Ulrich, Mayer, Larry A., Riedel, William R., Sancetta, Constance A., Spariosu, Dann J., Zimmerman, Herman B., Amidei, Rosemary, Lee, Marianna, Initial reports of the Deep Sea Drilling Project; covering Leg 68 of the cruises of the drilling vessel Glomar Challenger; Willemstad, Curacao to Guayaquil, Ecuador, 68, 383-395, georefid:1983-006961