Environmental surveys

The world environment 1972 - 1992 : two decades of challenge

1992 Tolba, Mostafa Kamal | El-Kholy, Osama A. | Holdgate, Martin W. |

Ethiopia : conservation of biological diversity

1989

Philippines : conservation of biological diversity and forest ecosystems

1988

Colombian Choco : conservation of biological diversity and forest ecosystems

1988

Kenya : conservation of biological diversity and forest ecosystems

1988

Ghana : conservation of biological diversity and forest ecosystems

1988

Madagascar : la conservation de la diversité biologique

1989

Man's role in changing the face of the Earth

1956 Thomas, William Leroy |

Our environment Mauritius

1975 Owadally, Wahab | Michel, Claude |

Restoring the land : environment and change in post-apartheid South Africa

1991 Ramphele, Mamphela |

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