TY  - BOOK
AU  - De Camp, L. Sprague (Lyon Sprague), 1907-2000
TI  - The ancient engineers
SN  - 0345257774
AV  - TA16.D4 1963 
PB  - Ballantine Books
KW  - Engineering - History
KW  - TA
N1  - 6th printing : September 1976 - t. p. verso; Includes bibliographical references (p. 419-431) and index
ER  -