Ferguson, George Andrew. <br/><br/>
Statistical analysis in psychology & education / 
George A. Ferguson. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  1971. 
 - xii, 492 p. : 
<br/><br/><label>ISBN: </label>0070205051 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.---
<br/><br/><label>Dewey Class. No.: </label>519.5  / St,3