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2531
Agro-economic evaluation of management intensities for irrigated rice [microform].
Vydáno 1977Visual Material -
2532
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2533
-
2534
-
2535
A study of the public schools division superintendency in the Philippines [microform].
Vydáno 1977Visual Material -
2536
Development orientation of private school administrators in Western Visayas [microform].
Vydáno 1977Visual Material -
2537
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2538
Interaction between soil moisture regime and nitrogen level in upland rice [microform].
Vydáno 1977Visual Material -
2539
Anopheles litoralis king as a probable experimental vector of malaria in the Philippines [microform].
Vydáno 1977Visual Material -
2540
Geological-geophysical investigation of a porphyry-type copper deposit at Camp 4, Tuba, Benguet [microform].
Vydáno 1977Visual Material