1. 1. United States Department of Health, Education, and Welfare, National Center for Health Statistics, Vital Statistics of the United States, Natality, Vol. 1,1962, Table 1-40, 1963, Table 1-51, 1964, 1965, 1966, 1967, 1968, Table 1-48. Updated by supplements from The National Center for Health Statistics.
2. Trends in the retention of married and pregnant students in American public schools;Atkyns;Sociol Educ,1968
3. The scope and sources of school board authority to regular student conduct and status: A non-constitutional analysis;Goldstein;University of Pennsylvania Law Review,1969
4. Education attitudes and practices regarding the pregnant high school girl;Noland;Ment Hyg,1967
5. School leaving due to pregnancy in urban adolescent population;Stine;Amer J Public Health,1964