Hartcup Guy <br/><br/>
The War Of Invention :  Scientific Developments, 1914-18 / 
Guy Hartcup. 
 - London :  Brassey's Defence Publishers ,  1988. 
 - 226p. :  illus. ;  22cm. , 
<br/><br/> Index 
<br/><br/><label>ISBN: </label>0-08-033591-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History World-War-1914-18.
<br/><br/><label>Dewey Class. No.: </label>940.3