00820nam 2200169z- 450 9910712276503321(CKB)5470000002491355(EXLCZ)99547000000249135520230509c1984uuuu -u- -engTrends in teenage childbearing, United States, 1970-81 : an analytical review of recent trends and differentials in childbearing by teenagersU.S. Department of Health and Human Services, Public Health Service, National Center for Health StatisticsHyattsville, MdTrends in teenage childbearing, United States, 1970-81 BOOK9910712276503321Trends in teenage childbearing, United States, 1970-81 : an analytical review of recent trends and differentials in childbearing by teenagers3322920UNINA