LEADER 00617nam  2200157z- 450 
001 9910712278603321
035   $a(CKB)5470000002491333
035   $a(EXLCZ)995470000002491333
100   $a20230509c1989uuuu  -u-            -
101 0 $aeng
200 10$aTrends and variations in first births to older women, 1970-86
210   $aHyattsville, Md$cU.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics
906   $aBOOK
912   $a9910712278603321
996   $aTrends and variations in first births to older women, 1970-86$93322940
997   $aUNINA