00299nam a2200121Ia 4500082002400000100001900024245005100043250001500094260003700109300002100146500000500167700000500172  a519.502438bIl27.ST  aIlersic, A. R.  aStatistics and their application to commerceb  a11th. rev.  aLondonbH.F.L. Publicationc1956  axii, 401p. Index  a  a