Ferguson, George A. <br/><br/>
Statistical analysis in psychology and education 

 - 6th ed. 
 - New York  McGraw-Hill  1989 
 - x,587p.  23 cm. 
 - McGraw-Hill psychology series .
<br/><br/><label>ISBN: </label>0071004386 
<br/><br/><label>Dewey Class. No.: </label>519.5024,  / D, fer