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  1. 1

    Ecological design and planning

    Udgivet 1997
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    Ecological design and planning
  2. 2

    Multispecies fisheries management proceedings of a symposium in Hirtshals, May 22-23, 1992

    Udgivet 1993
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    Multispecies fisheries management proceedings of a symposium in Hirtshals, May 22-23, 1992
  3. 3

    Sustainability issues in agricultural development proceedings of the Seventh Agriculture Sector Symposium

    Udgivet 1987
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    Sustainability issues in agricultural development proceedings of the Seventh Agriculture Sector Symposium
  4. 4

    The Sahel ecological approaches to land use.

    Udgivet 1975
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    The Sahel ecological approaches to land use.

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