AGRO-WELL and pump diffusion in the dry zone of sri lanka: past trends, present status and future  prospects 

 - Colombo  International Water management Institute  2003 
 - v, 48 p.                                                                                                                                                        9290905077 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wells -research
<br/><br/><label>Dewey Class. No.: </label>631.587  / INT