How things are made  

 - 1a Ed  
 - Washington   National Geographic Society   1980. 
 - 104p.   illcol   27cm  
<br/><br/> contiene índice   manufacturing processes  
<br/><br/><label>ISBN: </label>0870443399 
<br/><br/><label>LC Class. No.: </label>TS183  / .H68 1981