00748cam a2200265 4500 547191014 TxAuBib 20080110120000.0 121112s2007||||||||||||||||||||||||eng|u 2007042934 9781426201332 1426201338 9781426201349 1426201346 (OCoLC)175286393 DLC DLC PCB TxAuBib Marvels of engineering. Washington, D.C. : National Geographic, 2007. 191 p ; 26 cm. Includes index. 20080110. Engineering History. National Geographic Society (U.S.) TXCKT