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601
The economic and technical aspects of water application on rice [microform]
Published 1977Visual Material -
602
The economics of pump irrigation in low-land rice production, Cabuyao, Laguna, 1964-1969 [microform]
Published 1977Visual Material -
603
Water use and moisture stress effects in transplanted rice [microform]
Published 1977Visual Material -
604
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605
Water balance study of the north zone of the Magat River Irrigation System, Isabela [microform]
Published 1977Visual Material -
606
The net value of irrigation water in Upper Pampanga River Project, Central Luzon, Philippines [microform]
Published 1977Visual Material -
607
The distribution of water supply and water adequacy within a gravity irrigation system [microform].
Published 1977Visual Material -
608
The economics of irrigation development in Thailand a case study of the Chanasutr irrigation system [microform].
Published 1977Visual Material -
609
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610
The economics of irrigating sugarcane farms in San Carlos Milling Districts, 1967-1968
Published 1977Visual Material