000 00364nam a2200109 4500
082 _a304.6 NAT-D
245 _aDemographic and economic change in developed countries :
_bNational Bureau of Economic Research /
260 _aNew York :
_c1960.
_bNational Bureau of Economic Research,
300 _a536p. :
650 _aPopulation studies (Demography)
942 _cBK
999 _c309306
_d309306