COOPER, R. Donald <br/><br/>
Business Research Methods 

 - 7th 
 - New York  Mc-Graw Hill/Irwin Companies  2001 
 - viii, 798p. 
<br/><br/><label>ISBN: </label>0072314516 
<br/><br/><label>LC Class. No.: </label>HD30  / .C66