Introductory Statistics for the Behavioral Sciences/ 
Joan Welkowitz  
 - 6th ed  
 - New Jersey :  John Wiley,  2006  
 - xv, 391 p.;  ill.; 
<br/><br/> includes index  
<br/><br/><label>ISBN: </label>0155459872 
<br/><br/><label>Subjects--Topical Terms: </label><br/>statistics 
<br/><br/><label>LC Class. No.: </label>HA29 .W445 1991