000 00337nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aUnited Nations .
245 0 _aFertility data in population census. population studies No. 6
260 _bUnited Nations .
_aNew York.
_c1949
942 _c1
999 _c45241
_d45241