000 00242nam a2200097Ia 4500
020 _a0 7496 4949 6"
100 _aWALKER J
_93250
245 0 _aENVIRONMENTAL ISSUES THE ZONE HOLE
942 _cBK
008 210805s9999 xx 000 0 und d
999 _c55566
_d55565