000			00416nam a2200145Ia 4500
008			180713s9999 xx 000 0 und d
082			_a530 S58:1
100			_a"Singh, Harnam "
245		0	_aPractical Physics
260			_aNew Delhi
260			_b S Chand
260			_c1957
365			_b425
942			_cBK
999			_c112715 _d112715