000 00295nam a2200121Ia 4500
008 230524s9999 xx 000 0 und d
100 _aSharma, R. K.
245 0 _aSamajik Vigyan Adhyayan Shikshan
260 _bRadha Prakashan
_aAgra
_c2016
300 _a392
650 _aEducation
942 _cREF
999 _c6800
_d6800