1. White House Conference Report;Plass,1933
2. Maternal Mortality in Fifteen States, U. S. Dept. of Labor, Publ. No. 223, 1934.
3. Maternal Mortality in New York City, New York Academy of Medicine, Commonwealth Fund, 1933.
4. Comparability of Maternal Mortality Rates in the United States and Certain Foreign Countries, Children’s Bureau;Tandy,1935
5. Maternal, Fetal, and Neonatal Morbidity and Mortality