00307nam a2200121Ia 4500008004100000082001500041100002000056245003500076260003800111300001200149942000700161999001700168190709s9999    xx            000 0 und d  a370.1 P65P  aPounds, Ralph L 0aPrinciples of modern education  aNew YorkbMacmillan Companyc1962  axvi,456  cBK  c36422d36422