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2271
Effect of nitrogen, phosphorus and potassium fertilization on yield and rhizome quality of ginger [microform].
Published 1977Visual Material -
2272
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2273
Seasonal movements of the consumer price indexes of the Philippines [microform].
Published 1977Visual Material -
2274
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2275
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2276
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2277
Effects of heated effluents on the water quality and biota of Laguna de Bay [microform].
Published 1977Visual Material -
2278
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2279
The organization and management of the Philippines Patent Office [microform].
Published 1977Visual Material -
2280
Development of a process for the preparation of soymilk in rural areas [microform].
Published 1977Visual Material