1. Dill, D., J. natn. Cancer Inst., 35, 185 (1965).
2. Shepard, J., Donovan, W., and Mundle, P., Age Records 1974 (Track and Field News Press, Los Altos, California, 1974).
3. Reel, V., Women's Track and Field World (PO Box 371, Claremont, California 91711).