000 00331nam a2200145Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
020 _a0-07-019147-6
041 _aen
082 _a574
100 _aEHRLICH ,Paul R.
245 0 _aBiology and Society
260 _aNew York
_bMcgraw Hill
_c1976
300 _aix, 564p.
942 _cLL
999 _c169
_d169