00499nam a22001817a 450000500170000001000140001702000260003103500130005703700130007008200100008310000200009324500600011325000120017326000440018527000500022930000240027965000140030320100803121213.0  aENG-97959  a9788125938477c250.00  aEN-81492  bDBAD/PUB  a371.4  aAggarwal, J. C.  aTheory and principles of education /cby J. C. Aggarwal  a13th ed  aNew DelhibVikas Publishing Housec2010  a576, Masjid Road, JangpurabNew Delhie110014  ax,518p.c24cm (pbk)  aEducation