000 00289nam a2200121Ia 4500
008 180710s9999 xx 000 0 und d
020 _a51438
082 _a574.5
_bSCI
245 4 _aThe Biosphere
260 _aSan Francisco
_bW.H.Freeman and Company
_c1970
300 _a134 p.
942 _cS
999 _c81925
_d81925