Burtt, Harold E. <br/><br/>
Applied psychology. 

 - 2nd ed. 
 - New York  Prentice Hall  1957. 
 - 592 p.  ill.; graphs. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology, Applied<br/>Psychology