De Camp, L. Sprague (Lyon Sprague), 1907-2000 <br/><br/>
The ancient engineers 
L. Sprague De Camp 
 -  Ballantine Books New York  1963  c1963 
 - 450 p. : ill. ; 18 cm. 
<br/><br/> 6th printing : September 1976 - t. p. verso  Includes bibliographical references (p. 419-431) and index 
<br/><br/><label>ISBN: </label>0345257774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering - History--TA
<br/><br/><label>LC Class. No.: </label>TA16.D4 1963