00401nam a2200145Ia 4500008004100000020001500041082001700056100002600073245004300099260004400142300000800186650001400194650002000208653002700228170901s1984    xx            000 0 und d  a0314778306  a370.15bT42I  aThornburg, Hershel D. 0aIntroduction to Educational Psychology  aSt. PaulbWest Publishing Companyc1984  a555  aEducation  aSocial sciences  aEducational psychology