Ecological principles for economic development
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| Corporate Authors: | , | 
| 格式: | 圖書 | 
| 語言: | English | 
| 出版: | London
          Published for the International Union for Conservation of Nature and Natural Resources (IUCN), Morges, Switzerland and the Conservation Foundation, Washington, D.C., USA. by Wiley
    
        c1973. | 
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