Scheaffer, Richard l <br/><br/>
Elementary survey sampling / Richard L.Scheaffer, William Mendenhall, Lyman Ott. 

 - 4th ed. 
 - Boston : PWS-KENT Pub. Co., 1990.  Boston : PWS-KENT Pub. Co., 1990. 
 - p. cm. 
<br/><br/><label>ISBN: </label>053492185X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)