000 00286nam a2200121Ia 4500
008 230524s9999 xx 000 0 und d
100 _aSharma, R. K.
245 0 _aSocial Science and its Teaching
260 _bAgrawal
_aAgra
_c2010
300 _a224
650 _aEducation
942 _cREF
999 _c6811
_d6811