Lindgren, Henry Clay, 1914- <br/><br/>
Educational psychology in the classroom 
Henry Clay Lindgren 
 - 5th ed. 
 - New York  John Wiley & Sons  1976 
 - 521 p. : ill. ; 24 cm. 
<br/><br/> Includes indexes 
<br/><br/>p. 491-514 
<br/><br/><label>ISBN: </label>0471536490 
<br/><br/><label>LCCN: </label>75-31716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology