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Directory of institutions and individuals active in environmentally-sound and appropriate technologies
Gorde:
| Formatua: | Liburua |
|---|---|
| Hizkuntza: | ingelesa |
| Argitaratua: |
Oxford New York
Published for the United Nations Environment Programme by Pergamon Press
1979
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| Edizioa: | 1st ed |
| Saila: | UNEP reference series
v. 1 |
| Gaiak: | |
| Etiketak: |
Etiketa erantsi
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