Churchill Ruel V <br/><br/>
Operational mathematics 
Churchill Ruel V 
 - 3 
 -  1972 
<br/><br/><label>Standard No.: </label>80530 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B2893, L2