Inventions / 

 - Manila :  WS Pacific Pub.,  c2011 
 - 64 pages :  illustrations ;  21 cm. 
 - Focus On .
<br/><br/><label>ISBN: </label>9781849562089 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions - History<br/>Technology - History
<br/><br/><label>Dewey Class. No.: </label>CIR 609 In62 2011