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4201
-
4202
-
4203
Resistance to the zigzag leafhopper Recilia Dorsalis (Motschulsky), in rice varieties [microform].
Published 1977Visual Material -
4204
A numerical study of the small sample properties of the coefficient of variation [microform].
Published 1977Visual Material -
4205
Chemical protectants for Benguet pine seeds against rats [microform].
Published 1977Visual Material -
4206
-
4207
Nondestructive testing for strength and elasticity of some Philippine woods by forced vibration [microform].
Published 1977Visual Material -
4208
An econometric model of Philippine wood production and export [microform].
Published 1977Visual Material -
4209
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4210