000			00304nam a2200133Ia 4500
008			230118s9999||||xx |||||||||||||| ||und||
082			_a519.5
082			_bGUP/E
100			_aS.P. _bGUPTA
245		0	_aELEMENTARY STATISTICAL METHODS
260			_aDELHI
260			_bSULTAN CHAND & SONS
260			_c1991
999			_c6646 _d6646