Builders of the ancient world:  Marvels of engineering. 
Hammond, norman. 
 - Washinton D.C  National geographic society.  1986 
 - 199p. 
<br/><br/><label>ISBN: </label>N/A 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Engineering and Technology
<br/><br/><label>LC Class. No.: </label>TA 16   / .H36 1986