00301nam a2200121Ia 450000500170000000800410001704100080005808200150006610000160008124500310009726000420012830000090017020260720174539.0260720s2005    xx            000 0 und d  aeng  a930.7 KOCT  aKochar, S K  aTeaching of social studies  aNew DelhibSterling Publicationc2005  a352p