00779nam 2200181z- 450 9910708689503321(CKB)5470000002470330(EXLCZ)99547000000247033020230509c1980uuuu -u- -engTrends and differentials in births to unmarried women : United States, 1970-76U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health StatisticsHyattsville, Md0-8406-0172-7 Trends and differentials in births to unmarried women BOOK9910708689503321Trends and differentials in births to unmarried women : United States, 1970-763298506UNINA