000			00299nam a2200109Ia 4500
008			200302s9999 xx 000 0 und d
100			_aWilliam P. Cunningham
245			_aEnvironmental Science A Global Concern 5th ed
260			_bTata Mcgraw-Hill Publishing Co.
260			_c1999
300			_a650 P.,
999			_c1200 _d1200