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  1. Methods of communication adapted to forest protection, by W. N. Miller.
    By: Canada. - Millar, Willis Norman.
    Publication info: Ottawa,1920.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Canada  Forests and forestry  Signals and signaling  Telephone  
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  2. The telephone systems of the continent of Europe by A.R. Bennett.
    By: Bennett, Alfred Rosling,
    Publication info: London ;Longmans, Green,1895.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Europe  Telephone  
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