00379nam a2200145Ia 4500008004100000020001800041041001200059082002200071100002000093245005400113250001200167260002700179300000800206650001900214231217s9999    xx            000 0 und d  a0-7069-7662-2  aEnglish  a372.891  AGG;1  R  aAgggarwal, J C. 0aTeaching of social studies : a practical approach  a3rd ed.  c1998bVikasaNew Delhi  a391  asocial,studies