Blumberg, Boris. <br/><br/>
Business research methods / 
Boris Blumberg, Donald R. Cooper and Pamela S. Schindler. 
 - 3rd  ed. 
 - London :  McGraw-Hill,  2011. 
 - 1 v. (various paging) ; 
<br/><br/><label>ISBN: </label>0077129970 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial management--Research.