Scheaffer, Richard L. <br/><br/>
Elementary survey sampling / 
Richard L. Scheaffer, William Mendenhall, Lyman Ott. 
 - 4th ed. 
 - Belmont, CA :  Duxbury Press,  1990. 
 - x, 390 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>053492185X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics).