000			00332nam a2200133Ia 4500
005			20260205045230.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a370.7123 N213T
100			_aGupta,K.B.
245		0	_aTeaching of science in secondary school
260			_aDelhi _bN.C.E.R.T _c1982
300			_a250p.
942			_cBK
999			_c72170 _d72170