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  1. Agriculture for southern schools, by John Frederick Duggar ...
    By: Duggar, J. F.
    Publication info: New York :The Macmillan Company,1909, c1908.
    Contributed by: University of California Libraries (archive.org)
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  2. Agriculture for southern schools.
    By: Duggar, J. F.
    Publication info: New York,Macmillan,1908.
    Contributed by: Prelinger Library (archive.org)
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  3. Southern field crops (exclusive of forage plants)
    By: Duggar, J. F.
    Publication info: New York,The Macmillan company,1911.
    Contributed by: Cornell University Library
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  4. Southern field crops (exclusive of forage plants),
    By: Duggar, J. F.
    Publication info: New York,The Macmillan company,1916, [c1911].
    Contributed by: Cornell University Library
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  5. Southern field crops [exclusive of forage plants] by John Frederick Duggar...
    By: Duggar, J. F.
    Publication info: New York,The Macmillan company,1911.
    Contributed by: University of California Libraries (archive.org)
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