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  1. By: Haas, Paul, - Hill, T. G.
    Publication info: London, Longmans, Green and co, 1913
    Holding Institution: NCSU Libraries
  2. By: Haas, Paul, - Hill, T. G.
    Edition: 2d ed.
    Publication info: London, Longmans, Green, 1917
    Holding Institution: NCSU Libraries
  1. By: Hill, T. G. - Freeman, William George,
    Type: Article
    In: Annals of botany
    Volume: 17
    Date: 1903-03
    Page Range: 413--424
    Publication Info: London, Academic Press [etc.],