000			00343nam a2200145Ia 4500
008			230302s9999 xx 000 0 und d
041			_aENGLISH
082			_a530.8
100			_aHarnam singh.
245		0	_aBsc practical physics.
260			_aNew Delhi _bS. Chand andCo _c2004
300			_a498
650			_aCurrent Science
942			_cBK
999			_c17464 _d17464