00288nam a2200121Ia 450000500170000000800410001704100080005808200150006610000160008124500270009726000330012430000090015720260720174533.0260720s2006    xx            000 0 und d  aeng  a420.7 KOHT  aMathur, S S  aEducational psychology  aNew DelhibDoaha Housec2006  a199p