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

 - 5th ed 
 - McGraw - Hill, Auckland  1959 
 - x,549p tabs, figs. 
<br/><br/><label>ISBN: </label>0-07-020482-9 
<br/><br/><label>Dewey Class. No.: </label>150.7253 Fer