00315nam a2200133Ia 4500003000400000005001700004008004100021040001000062082001400072100002100086245003400107260002000141600002000161OSt20260518155012.0241002s9999    xx            000 0 und d  cAACR2  a370.1 KNI  aKnight, Edgar W. 0aTwenty Centuries of Education  aNew York:c1940  aSocial Sciences