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2421
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2422
Water balance study of the north zone of the Magat River Irrigation System, Isabela [microform]
Published 1977Visual Material -
2423
Yield potential of grain sorghum after rice in rainfed areas [microform]
Published 1977Visual Material -
2424
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2425
Influence of herbicides on sclerotium damping-off in tomato [microform]
Published 1977Visual Material -
2426
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2427
The effect of growth regulators on root and shoot production and yield of cassava (manihot esculenta crantz) [microform]
Published 1977Visual Material -
2428
Analysis of variation and construction of selection indices in two sugarcane hybrid populations [microform]
Published 1977Visual Material -
2429
Mineral resources and economic growth selected indicators for the Philippines [microform]
Published 1977Visual Material -
2430
The development of government expenditure in the Philippines, fiscal years 1962-1975 [microform]
Published 1977Visual Material