00296nam a2200121Ia 450000500170000000800410001704100080005808200130006610000160007924500280009526000420012330000090016520260720174615.0260720s2005    xx            000 0 und d  aeng  a370 NUNP  aNunn, Percy  aPrinciples of education  aNew DelhibDiscovery Publishersc2005  a260p