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

 - 3rd edn. 
 - New Delhi  John Wiley & Sons  2006 
 - xvi,428p.  22cm.PB 
<br/><br/><label>ISBN: </label>9971512718 
<br/><br/><label>Dewey Class. No.: </label>519.52  / COC