Second approximations: unplanned farmer contributions to irrigation design/
Vermillion, Douglas L.,
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 .
Irrigation--Design
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 .
Irrigation--Design
