Mitzel, Harold E <br/><br/>
Encyclopedia of educational research, V2: economics to learning, V3:learning rehabilitation, V4:relibility to zeigarnik 

 - 5th ed. 
 - New York  Free Press  1982 
 - 1058 p. 
<br/><br/><label>Dewey Class. No.: </label>370.7803 E19E