00287nam a2200109Ia 4500008004100000022001800041040002500059082001500084100002300099245001800122260003700140240215s9999    xx            000 0 und d  a0-675-20748-7  aNORSU-DumcNORSU-Dum  a550/T17/C7  aTarbuck, Edward J. 0aEarth Science  bMerrill Publishing Companyc1988