Prenatal care, United States, 1969-1975 / Selma Taffel.
- Hyattsville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Center for Health Statistics, 
- Government document
v, 40 p. ; 26 cm.
- Vital and health statistics. Data from the National Vital Statistics System ; Series 21, no. 33
DHEW publication ; no. (PHS) 78-1911