BUSINESS research methods 
William G. Zikmund ...[et al.] 
 - 9th ed. 
 - Mason, Ohio  South-Western Cengage Learning  2013. 
 - xxii, 670 p.  ill.  29 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1111826927 9781111826925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Research.<br/>Management--Research.
<br/><br/><label>LC Class. No.: </label>HD30.4  / .Z54 2013