000 00529pab a2200181 454500
008 180718b1996 xxu||||| |||| 00| 0 eng d
100 _aOkun, Barbara S.
245 _aUsing fertility surveys to evaluate an indirect method for detecting fertility control
_ba study of cohert parity analysis.
260 _c1996
300 _ap.161-71
362 _aJul
650 _aBirth control
650 _aFamily planning
700 _aVaughan, Barbara
700 _aTrussell, James
773 _aPopulation Studies
909 _a31690
999 _c31690
_d31690