000			00375nam a2200145Ia 4500
005			20260205060134.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a371.3 B469S
100			_aBharat Singh
245		0	_aScience teaching in schools
260			_aNew Delhi _bSauabh publishing house _c2009
300			_a304p.
690			_aTeaching techniques
942			_cBK
999			_c163855 _d163855