00392nam a2200145Ia 4500008004100000020001800041041001200059082001900071100002000090245005400110250001200164260003800176300001300214650001900227231217s9999    xx            000 0 und d  a81-259-1869-8  aEnglish  a372.891  AGG;3  aAgggarwal, J C. 0aTeaching of social studies : a practical approach  a4th ed.  c2006bVikas PublishingaNew Delhi  axvi, 447  asocial,studies