Howard, Robert. <br/><br/>
Performance in a world of change :  perspective on learning environments / 
Robert Howard. 
 - Washington :  University Press of America,  c1979. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0819107859 
<br/><br/><label>LCCN: </label>79065294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning, Psychology of.<br/>Problem solving.