00250nam a2200109Ia 4500082002000000100003100020245002700051260003700078300001500115500000500130700000500135  a519.1bSp769.PM  aSpringer, C. H. and Others  aProbabilistic modelsb  aHomewoodbRichard D. Irwinc1968  axii, 301p.  a  a