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- Nature conservation
- History 17
- Government policy 9
- Wilderness areas 9
- Conservation of natural resources 8
- National parks and reserves 8
- Environmental conditions 7
- Environmental policy 7
- Environmental protection 7
- Management 7
- Social aspects 7
- Environmental aspects 6
- Nature Conservation 6
- Biodiversity 5
- Biodiversity conservation 5
- Ecology 5
- Economic aspects 5
- Law and legislation 5
- Nature 5
- Philosophy 5
- Political aspects 5
- Wildlife conservation 5
- Citizen participation 4
- Conservation biology 4
- Conservationists 4
- Ecosystem management 4
- Effect of human beings on 4
- Endangered species 4
- Environment 4
- Land use 4
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Urban habitats
出版事項 1999An electronic book accessible through the World Wide Web; click to view
電子媒体 eBook -
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Wild ideas
出版事項 1995An electronic book accessible through the World Wide Web; click to view
電子媒体 会議録 eBook -
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