000			00280nam a2200121Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aGupta R C
245		0	_aStatical Quality Control
260			_bSulthan Chand&Sons _c1981
300			_a813p
650			_aCommerce
942			_cBK
999			_c4885 _d4885