The builders :   marvels of engineering. 

 - \Washington, D.C. :   National Geographic Society, BOOK Division,   c1992. 
 - \288p. 
<br/><br/><label>ISBN: </label>\0870448366 \0870448374 (Deluxe) 
<br/><br/><label>LCCN: </label>\92030615 
<br/><br/><label>LC Class. No.: </label>TA