Ecological principles for economic development
| Egile nagusia: | |
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| Egile korporatiboa: | , |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
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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| Gaiak: |