TY  - GEN
AU  - 20080729                     
ED  - National Geographic Society (U.S.).
TI  - Builders of the Ancient World: Marvels of Engineering 
SN  - 0870445855
U1  - 624.09 
PY  - 1986///
CY  - Washington, D.C.
PB  - The Society
KW  - Engineering
KW  - History
KW  - Architecture, Ancient
N1  - Includes index; Bibliography: p. 199; catalogued by: wessam
ER  -