000 00326nam a2200121Ia 4500
001 MPKV057267
008 120911s9999 xx 000 0 und d
082 _a500
245 _aDown to Earth Vol.30 No.1-4
_c;
246 _aDown to Earth Vol.30 No.1-4
260 _aMichigan
_bDown Chemical Company
_c1974
650 _aPure science
999 _c55260
_d55260