Construction of hand-dug well in rural villages in Sri Lanka 

 - HELVITAS  Colombo  1994 
 - 50 
 - Ground Water Hand-Dug Wells 
<br/><br/><label>Nat. Bib. No.: </label>5758 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>628.11(548.7) CON 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering & Technology
<br/><br/><label>Universal Decimal Class. No.: </label>628.112(54.7)  1