Cochran <br/><br/>
Sampling Techniques  

 - 3rd Edition  
 - New York:  John Willey and sons Inc,  1999. 
<br/><br/><label>ISBN: </label>9971512718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling Techniques 
<br/><br/><label>Dewey Class. No.: </label>519.52  / COC