SNEDECOR, George W. <br/><br/>
Statistical methods 

 - 6th ed. 
 -  Ames , Iowa University press  1967 
 - 593 p. 
<br/><br/><label>ISBN: </label>0000813815606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>519.23  / S52