Small scale irrigation
Stern, P.
Small scale irrigation a manual of low-cost water technology by P. Stern - Intermediate Technology Publication 1979 - 152 p.
Irrigation
631.67 / S 839 S
Small scale irrigation a manual of low-cost water technology by P. Stern - Intermediate Technology Publication 1979 - 152 p.
Irrigation
631.67 / S 839 S