Cooper, Terence H.  <br/><br/>
Business Research Methods 
Cooper.Donald R & Schindler.Pamela S 
 - 7th ed. 
 - New York.:  McGraw-Hill Irwin,  c2000 
 - xviii, 798p .:  ill. (some col.);  26cm. 
<br/><br/>includes bibliography references and index. 
<br/><br/><label>ISBN: </label>0071181091 978007181099 
<br/><br/><label>LC Class. No.: </label>HD30.4.  / E47 2000