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61
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62
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63
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64
Interaction of rate and time of nitrogen application and weed control methods in upland rice [microform].
Published 1980Visual Material -
65
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66
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67
Folk medical practices in a barrio their implications for the rural health program [microform].
Published 1980Visual Material -
68
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69
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70
Petiole anatomy and infrageneric-inter-specific relationships of Philippine Shorea (Dipterocarpaceae) [microform].
Published 1980Visual Material