Cochran, William G.  . <br/><br/>
Sampling techniques /  
by Cochran William G.. 
 - 3rd ed /  
 - New York :   John Wiley & Sons, Inc. ,   1977 
 - xvi, 428p ;  
<br/><br/><label>ISBN: </label>9971-51-271-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics-Sampling
<br/><br/><label>Dewey Class. No.: </label>B281  / N7;1