Scheaffer, Richard L. <br/><br/>
Elementary Survey Sampling / 
Richard L. Scheaffer, William Mendenhall, Lyman Ott. 
 - 3rd ed. 
 - Boston :  Duxbury Press,  1986 
 - xi, 324 p. :  ill. ;[hb] 
<br/><br/><label>ISBN: </label>0871509431 
<br/><br/><label>Dewey Class. No.: </label>519.52  / SCH-E