Gagne, Robert M. <br/><br/>
Psychological principles in system development 

 - New York  Holt Rinehart and  wiston  1962 
 - xiv, 560p 
<br/><br/><label>Subjects--Index Terms: </label>Psychology  System development 
<br/><br/><label>Dewey Class. No.: </label>158.7  / GAN