00339nam a2200121Ia 4500008004100000082001500041100002400056245006700080260003800147300000800185942000700193999001700200190709s9999    xx            000 0 und d  a154.4 T98E  aTravers, Robert M W 0aEssentials of learning : an overview for students of education  aNew YorkbMacmillan Companyc1963  a544  cBK  c38510d38510