Bordens, Kenneth S. <br/><br/>
Research design and methods :  a process approach. 

 - 5th ed. 
 - USA :  McGraw Hill,  2002. 
 - xv, 490 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0767421523 
<br/><br/><label>Dewey Class. No.: </label>150.72 BOR