Builders of the ancient world   : marvels of engineering  
/ prepared by the special publications division, National Geographic Society, Washington, D.C. 
 - Washington, D.C.   : National Geographic Society   , 1986 
 - 200 p.   : ill. (some col.)  ; 26 cm.  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0870445901 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingenierķa --- Historia <br/>Arquitectura antigua 
<br/><br/><label>LC Class. No.: </label>TA 16  / B85 1986