Shearer J Lowen <br/><br/>
Introduction to system dynamics. 
Shearer J Lowen 
 -  1977 
<br/><br/><label>Standard No.: </label>134638 
<br/><br/><label>Source: </label> Annuals, Advances 
<br/><br/><label>Dewey Class. No.: </label>B2895, K7