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  1. Agricultural botany, theoretical and practical.
    By: Percival, John,
    Edition: 4th ed.
    Publication info: New York,H. Holt,1910.
    Contributed by: Cornell University Library
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  2. Common weeds of the farm & garden / by Harold C. Long in collaboration with John Percival.
    By: Long, H. C. - Percival, John,
    Publication info: New York :Frederick A. Stokes,1910.
    Contributed by: University of California Libraries (archive.org)
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  3. The wheat plant; a monograph, by John Percival.
    By: Percival, John,
    Publication info: London :Duckworth and co.,[1921]
    Contributed by: University of California Libraries (archive.org)
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