Inventions and discoveries:  warfare/  -- Chicago:  World Book, Inc.,  2009. <br/> col.: ill.;  27. <br/><br/> Includes index. <br/><br/><label>ISBN: </label>9780716603887 <br/><br/><label>Subjects--Topical Terms: </label><br/>Military art and science--History--Juvenile literature.<br/>Military weapons--History--Juvenile literature.<br/><br/><label>Dewey Class. No.: </label>HS Ref 355.02 W23 2009