00313nam a2200121Ia 450000500170000000800410001704100080005808200130006610000170007924500470009626000390014330000090018220260720174552.0260720s2005    xx            000 0 und d  aeng  a910 DHAR  aDhand, harry  aResearch in teaching of the social studies  aNew DelhibAshish Publishingc2005  a158p