00309nam a2200121Ia 4500008004100000082002000041100001600061245002400077250001100101260003200112300000600144650003700150150614s9999    xx            000 0 und d  a519.5068  CHA-B  aK.K. Khanna  aBusiness Statistics  aII-ed.  bVikas Pub.House Delhic1995  a0  aBusiness Statistics,K.K. Khanna,