Duffy, Joseph W. <br/><br/>
Power: Prime mover of technology 
Joseph W. Duffy 
 -  c.1964 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Power--ME
<br/><br/><label>Dewey Class. No.: </label>621.4 DUF