Howell, David C. <br/><br/>
Fundamental Statistics for the Behavioral Science: 

 - 3rd ed. 
 - USA:  Thomson,  1995. 
 - 457p.: 
<br/><br/><label>ISBN: </label>9780534239763 
<br/><br/><label>LC Class. No.: </label>HA29.H78  / how2004