Soil conservation policies : an assessment /
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Autor principal: | |
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Formato: | Texto biblioteca |
Idioma: | d |
Publicado em: |
Ankeny, Iowa : Soil Conservation Society of America,
1979
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Assuntos: | SOIL CONSERVATION-UNITED STATES-CONGRESSES, AGRICULTURE AND STATE-UNITED STATES-CONGRESSES, ENVIRONMENTAL POLICY-UNITED STATES-CONGRESSES, Soil Conservation Society of America, |
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