00302nam a2200121Ia 450000500170000000800410001704100080005808200150006610000160008124500310009726000430012830000090017120260720174757.0260720s2009    xx            000 0 und d  aeng  a900.7 RUHT  aRuhela S.P.  aTeaching of social science  aNew DelhibNeelkamal Publicationc2009  a448p