Perera, H. S. <br/><br/>
The psychology of learning and teaching :  a new contribution to the subject in the form of a three-phase theory / 
H. S. Perera ; with an introduction by L. Macrae and a foreword by Harold E. Palmer 
 - London :  Oxford University Press,  1938 
 - 228 p. ;  21 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology<br/>Teaching--Psychological aspects
<br/><br/><label>Dewey Class. No.: </label>370.15