000			00343nam a2200145Ia 4500
008			240723s9999 xx 000 0 und d
041			_aEnglish
084			_aT _bM5
100			_aS.K Gupta
245		0	_aTechnology of socience education
260			_aDelhi _bVikas Publishing _c1983
300			_ap.97
650			_aEducation
942			_cBK
999			_c312774 _d312774