Carregant...
Directory of institutions and individuals active in environmentally sound and appropriate technologies
| Autor corporatiu: | |
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| Format: | Printed Book |
| Idioma: | English |
| Publicat: |
NewYork
Pergamon press
1979
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| Matèries: |
| Descripció física: | xvii, 152p. |
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| ISBN: | 0080256589 |