Hays, James D. (1972): Initial reports of the Deep Sea Drilling Project, Leg 9 of the cruises of the Drilling Vessel "Glomar Challenger", Papete, Tahiti to Balboa, Panama, December 1969-January 1970. U.S. Gov. Print. Off.; Prepared for the National Science Foundation, National Ocean Sediment Coring Program, under Contract C-482 by the University of California, Scripps Institution of Oceanography, Initial Reports of the Deep Sea Drilling Project, 9, 1205 pp., georefid:1972-012640