000 00319nam a22001217a 4500
008 180222b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a33
100 _a52
101 _aEKO
245 _aFacing Zero population growth: Reactions and interpretations, Past and Present
_cSpengler,J.J
942 _2udc
_cBK
999 _c43170
_d43170