Cochran William <br/><br/>
Sampling Techniques 

 - 3rd Ed. 
 -  John Wiley & Sons  2002 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0471601802 
<br/><br/><label>Dewey Class. No.: </label>1.4222  / COC