00375nam a2200145Ia 4500008004100000020001500041082001700056100002000073245002700093260004000120300000800160650001400168650002000182653002700202170901s1990    xx            000 0 und d  a8122402607  a370.15bN24E  aRao, S. Narayan 0aEducational Psychology  aNew DelhibWiley Eastern Ltd.c1990  a471  aEducation  aSocial sciences  aEducational psychology