00353nam a2200121Ia 4500008004100000040002500041082001200066100004400078245005800122250002100180260002200201300000800223230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a628 En3  aEnger,  Eldon D. and  Bradley F. Smith  0aEnvironmental science: a study of inter-relationships  aSeventh Edition   bMcGraw-HIllc2000  a432