William G. Cochran <br/>
Sampling Techniques : 
William G. Cochran 
 - 3rd ed. 
 - New York :  John Wiley and Sons,  c1999. 
 - xvi,428 p. :  23 cm. 
<br/><br/><label>ISBN: </label>978-81-265-1524-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>science
<br/><br/><label>Dewey Class. No.: </label>519.52COS