Langer, Jonas <br/><br/>
Theories of development 
by Jonas Langer 
 - New York  Holt, Rinehart and Winston  1969 
 - 191p. 
<br/><br/> $5.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Genetic Psychology
<br/><br/><label>Dewey Class. No.: </label>K95236 L262