Vermillion, Douglas L., <br/><br/>
Second approximations:  unplanned farmer contributions to irrigation design/ 
Douglas L. Vermillion 
 - London:  Overseas Development Institute,  1989 
 - 19 p. ;   20 cm. 
 - ODI/IIMI irrigation management network paper  89/2c .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation--Design