Feller, William. <br/><br/>
An Introduction to Probability Theory and its applications / 
/ William Feller. 
 - 2 Ed. 
 - New York   John Wiley & Sons    1967. 
 - xv, 461p.   ; 21cm. 
<br/><br/><label>LC Class. No.: </label>QA273  / .F44 1971