Zikmund, William G. <br/><br/>
Business research methods 

 - 4th ed. 
 - New York  Dryden press  1984 
 - xxii, 776p. 
<br/><br/><label>ISBN: </label>0030975859 
<br/><br/><label>Subjects--Index Terms: </label>Business research  
<br/><br/><label>Dewey Class. No.: </label>001.42  / ZIK