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31
Nitrogen-potassium ratios in relation to nutrient content and yield of cotton [microform].
יצא לאור 1980Visual Material -
32
The role of communication on the knowledge and attitude of Mt. Makiling kaingineros towards resettlement [microform].
יצא לאור 1980Visual Material -
33
Content analysis of criterion-referenced tests used in the Division of Isabela [microform].
יצא לאור 1980Visual Material -
34
Food and feeding habits of the house bat, Scotophilus Temminckii (Horsfield), Chiroptera Vespertilionidae [microform].
יצא לאור 1980Visual Material -
35
Yield response curve of sugarcane under varying levels of nitrogen fertilization and water regimes [microform].
יצא לאור 1980Visual Material -
36
The translatability from English to Pilipino of terms used in rice production an exploratory study [microform].
יצא לאור 1980Visual Material -
37
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39
Biological constraints to high yields in selected farmers' fields in Iloilo, Philippines [microform].
יצא לאור 1980Visual Material -
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