Gravetter, Frederick J. <br/><br/>
Research methods for the behavioral sciences 
Frederick J. Gravetter and Lori-ann B. Forzano 
 - 2ed. 
 - Australia  Thomson  2006 
 - xxiii, 534p.  ill.  24cm. 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>0534558119 
<br/><br/><label>Dewey Class. No.: </label>150.72