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2051
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2052
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2053
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2054
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2055
Conversion of cow dung into fuel gas (methane) using a bioconversion process [microform]
Wydane 1977Visual Material -
2056
Utilization of ricehull and sawdust as components of vegetable growing media [microform]
Wydane 1977Visual Material -
2057
Optimal allocation of logging wastes in an integrated wood industry by linear programming [microform]
Wydane 1977Visual Material -
2058
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2059
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2060


