Observations on the hammerhead Sharks (Sphyrna) in Waters near Mazatlan, Sinaloa, Mexico. In P.W. Gilbert, R.F. Mathewson, & D.P. Rall, (Eds.), Sharks, skates and rays. (pp. 79–83). John Hopkins Press, Baltimore
Shark tagging in the Eastern Pacific Ocean, 1962-65. In P.W. Gilbert, R.F. Mathewson, & D.P. Rall, (Eds.), Sharks, skates and rays. (pp. 93–109). John Hopkins Press, Baltimore
