Bolles, Robert C. <br/><br/>
Theory of motivation /  
Robert Bolles C.,  H. Philip Zeighler. 
 - New York :    Harper & Row,    1967. 
 - 546 p. :    ill. ;    24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Motivation.
<br/><br/><label>Dewey Class. No.: </label>153.8