1. Vital Statistics Rates of the United States, 1940-1960;National Center for Health Statistics,1968
2. Vital Statistics of the United States;National Center for Health Statistics,1961
3. National Center for Health Statistics, Monthly Vital Statistics Report vol. 18 (no. 13 and no. 13, vol. 19. Rockville, Maryland).
4. A REVERSE CORRELATION BETWEEN THE SEX RATIO OF LIVE BIRTHS AND THE DEATH RATE FROM MALIGNANT NEOPLASMS