Gagne R M <br/><br/>
Psychological principles in sysytem developmant 

 -  1962 
<br/><br/><label>Standard No.: </label>83,909 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>SA, K2