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11
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Soil factors limiting sugar cane production in the Don Pedro Mill District, Batangas [microform].
Gepubliceerd in 1980Visual Material -
13
An application of modified Ramberg-Osgood function to the analysis of stress-strain curve of soils [microform]
Gepubliceerd in 1979Visual Material -
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Some characteristics of eight major soil series from the Visayan islands, Philippines and their potassium status [microform]
Gepubliceerd in 1977Visual Material -
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