Educational psychology  readings supplementary text and study questions 
edited by M. Ray Loree 
 - New York  The Ronald Press Co.  1959 
 - 425 p. ; 22 cm. 
<br/><br/> Includes indexes 
<br/><br/>p. 394-413 
<br/><br/><label>LCCN: </label>59-6111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology