00263nam a2200097Ia 4500008004100000040002500041082001400066100002100080245003000101260003400131240215s9999    xx            000 0 und d  aNORSU-DumcNORSU-Dum  a553.1/B31  aBateman, Alan N. 0aEconomic Mineral Deposits  bJohn Wiley & Sons, Inc.c1950