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    Agricultural ethics issues for the 21st century proceedings of a symposium sponsored by the Soil Science Society of America, American Society of Agronomy, and the Crop Science Soci...

    Argitaratua 1994
    Liburua

    Agricultural ethics issues for the 21st century proceedings of a symposium sponsored by the Soil Science Society of America, American Society of Agronomy, and the Crop Science Society of America in Minneapolis, MN, Oct. 31-Nov.5, 1992

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