Introduction to the practice of statistics / 
Moore David , George McCabe , Bruce Craig . 
 - 6th ed 
 - New York:  W.H Freeman and Company ,  2009. 
 - xxxiii,709 p.: 
<br/><br/><label>ISBN: </label>9781429216210 
<br/><br/><label>LC Class. No.: </label>QA276.12  / .M66 2009