Lindgren, Henry Clay,  1914- <br/><br/>
Educational psychology in the classroom  / 
Henry C. Lindgren. 
 - 4th ed. 
 - New York :  Wiley,  1972. 
 - 516 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology.
<br/><br/><label>Dewey Class. No.: </label>370.15 LIN