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61
Interaction of rate and time of nitrogen application and weed control methods in upland rice [microform].
Publié 1980Visual Material -
62
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63
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64
Folk medical practices in a barrio their implications for the rural health program [microform].
Publié 1980Visual Material -
65
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66
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68
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69
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70
Effects of nutrition on larval coloration and biology of helicoverpa armigera (Hubner) [microform].
Publié 1980Visual Material