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  1. 1
    Data book of world lake enviroments : a survey of the state of world lakes /

    Data book of world lake enviroments : a survey of the state of world lakes /

    Published 1993
    Book
  2. 2
    Zonas húmidas : um património a proteger e conservar /

    Zonas húmidas : um património a proteger e conservar /

    Book
  3. 3
    The Swedish National Parks /

    The Swedish National Parks /

    Book
  4. 4
    Conservation Achievements 1980 /

    Conservation Achievements 1980 /

    Published 1981
    Book
  5. 5
    Comisión de Parques Nacionales y Areas Protegidas /

    Comisión de Parques Nacionales y Areas Protegidas /

    Book
  6. 6
    Maravillas y tesoros del patrimonio de la humanidad.

    Maravillas y tesoros del patrimonio de la humanidad.

    Published 1990
    Book
  7. 7
    Recommendations on payments for ecosystem services in integrated water resources management /

    Recommendations on payments for ecosystem services in integrated water resources management /

    Published 2007
    Book
  8. 8
    Uso y gestión sostenible de los recursos naturales /

    Uso y gestión sostenible de los recursos naturales /

    Published 2007
    Book
  9. 9
    The environment in Europe and North America : annotated statistics 1992.

    The environment in Europe and North America : annotated statistics 1992.

    Published 1992
    Book

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