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- Environmental conditions
- History 232
- Human ecology 120
- Environmental aspects 105
- Environmental policy 77
- Social conditions 72
- Ecology 69
- Effect of human beings on 64
- Nature 62
- Climatic changes 58
- Environmental protection 54
- Economic conditions 52
- Social aspects 47
- Politics and government 42
- Natural history 40
- Environmental degradation 34
- Social life and customs 34
- Description and travel 30
- Indigenous peoples 30
- Landscapes 28
- Political aspects 24
- Environmentalism 22
- Land use 22
- Management 22
- Sustainable development 21
- Pollution 20
- Water-supply 20
- Economic aspects 18
- Human beings 18
- Indians of North America 18
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The final frontiers, 1880-1930 settling the southern bottomlands /
Publicado em 1999An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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Petrolia the landscape of America's first oil boom /
Publicado em 2000An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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Environment, scarcity, and violence
Publicado em 1999An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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NEON addressing the nation's environmental challenges /
Publicado em 2004An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
11
Pollution in a promised land an environmental history of Israel /
Publicado em 2002An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
12
Nonnative oysters in the Chesapeake Bay
Publicado em 2004An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
13
NOAA's Arctic Research Initiative proceedings of a workshop /
Publicado em 1997An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
14
Restoration of the Great Lakes promises, practices, performances /
Publicado em 2002An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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Science and technology for environmental cleanup at Hanford
Publicado em 2001An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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Scientific evaluation of biological opinions on endangered and threatened fishes in the Klamath River basin interim report /
Publicado em 2002An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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A vision for the International Polar Year 2007-2008
Publicado em 2004An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
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An environmental history of twentieth-century Britain
Publicado em 2002An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
19
Sunset limited the Southern Pacific Railroad and the development of the American West, 1850-1930 /
Publicado em 2005An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico -
20
Orange empire California and the fruits of Eden /
Publicado em 2005An electronic book accessible through the World Wide Web; click to view
Recurso Eletrônico livro eletrônico