00357nam a2200121Ia 4500008004100000082002600041100001800067245004800085250000900133260003700142300001400179490004200193260625b        |||||||| |||| 00| 0 eng d  a519.50182072bF535.SM  aFisher, R. A.  aStatistical methods for research workersb/  a13th  aEdinburgh:bOliver & Boyd,c1958  axv, 356p.  aBiological monographs and manualsv 5