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51
Commercial agriculture and institutional change among highland peasant producers in Benguet
Published 1983Analytics -
52
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53
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54
Indigenous innovative alternatives in resource management by upland vegetable farming communities.
Published 1983Analytics -
55
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56
Traditional home gardens of selected Philippine househols and their potential for improving human nutrition [microform]
Published 1981Visual Material -
57
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58
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59
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60
Qualitative interpretation of landscape features by airphoto-interpretation technique
Published 1976Thesis