Mendis, D.L.O. <br/><br/>
Hydraulic civilizations, irrigation ecosystems and the modern state 
/ D.L.O.Mendis 
 - Colombo  Deliverd at the Institution Auditorium  1989 
 - 52 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulic engineering<br/>Irrigation engineering
<br/><br/><label>Dewey Class. No.: </label>627  / MEN