000 00294nam a2200121Ia 4500
008 140122s9999 xx 000 0 und d
082 _a614.7 Botkin Da
100 _aBotkin Daniel B
245 _aEnvironmental science
260 _b
_c1985
700 _a Keller Edward A
942 _cBK
_2ddc
_01
999 _c6858
_d6858