Vernon, M. D. <br/><br/>
Human motivation 
M. D. Vernon 
 - London  Cambridge at the University Press  1969 
 - 189 p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MOTIVACION (PSICOLOGIA)
<br/><br/><label>Dewey Class. No.: </label>152.5  / V375