Tippett, L.H.C.  <br/><br/>
The methods of statistics  (Book) 

 - 4th rev ed. 
 - New York  John Wiley  1952 
 - 395p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Universal Decimal Class. No.: </label>519.2 TIP  / 9984