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  1. 1
    由 Clough, Peter W. J.
    出版 1987
    主題 “...Rural roads Maintenance and repair Economic aspects New Zealand....”
    圖書
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    The financial implications of forestry logging traffic on rural roads /
  2. 2
    出版 1993
    主題 “...Rural roads Maintenance and repair Economic aspects New Zealand....”
    圖書
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    Report from Forestry Road Funding Task Force.

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