Builders of the ancient world : marvels of engineering / prepared by the Special Publications Division, National Geographic Society, Washington, D.C. - Washington, D.C. : The Society, c1986. - 199 p. : ill. (some col.) ; 26 cm. Includes index. Bibliography: p. 199. ISBN: 0870445855 0870445901 (lib. bdg.) LCCN: 86005278 Subjects--Topical Terms: Architecture, Ancient.Engineering--History. LC Class. No.: TA16 / .B85 1986 Dewey Class. No.: 624/.09