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Appropriate technology : problems and promises
Main Author: | |
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Format: | Printed Book |
Language: | Undetermined English |
Series: | 1976
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Subjects: |
Physical Description: | 344 |
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Main Author: | |
---|---|
Format: | Printed Book |
Language: | Undetermined English |
Series: | 1976
|
Subjects: |
Physical Description: | 344 |
---|