Inventions and inventors 
edited by Roger Smith. 
 - California  Salem Press Inc.  [n.d.] 
 - vol.2. 
<br/><br/><label>ISBN: </label>1587650185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invention History; Invention Biography.
<br/><br/><label>Dewey Class. No.: </label>609  / I5I2