Cooper, Donald <br/><br/>
Business Research Methods 

 - 8th ed. 
 - New York  McGraw-Hill  2003 
 - xix, 857p 
<br/><br/><label>ISBN: </label>0-07-249870-6 
<br/><br/><label>LC Class. No.: </label>HD30.4  / .C66.2003