Directory of institutions and individuals active in environmentally-sound and appropriate technologies.
| स्वरूप: | पुस्तक |
|---|---|
| भाषा: | English |
| प्रकाशित: |
Oxford
Pergamon
1979.
|
| संस्करण: | 1st ed. |
| विषय: |
| स्वरूप: | पुस्तक |
|---|---|
| भाषा: | English |
| प्रकाशित: |
Oxford
Pergamon
1979.
|
| संस्करण: | 1st ed. |
| विषय: |