00326nam a2200121Ia 4500082001900000100003000019245003300049260005200082300000900134490005100143500000500194700000500199  a519.2bC559.FP  aChung, Kai Lai and Others  aFour papers on probabilityb  aProvidencebAmerican Mathematical Societyc1951  av.p.  aAmerican Mathematical Society memoirs v no. 6  a  a