KOEGEL, R.G. <br/><br/>
Self-help wells 

 - Rome: FAO,  1977 
 - 78P; illus 
 - FAO IRRIGATION AND DRAINAGE PAPER NO.30 .
<br/><br/><br/>ENG 
<br/><br/><label>Subjects--Topical Terms: </label><br/>UNDERGROUND WATER.<br/>WELLS.