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Book List
3
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Low-cost sanitation : a survey of practical experience / John Pickford.
- Intermediate Technology,
- 1995.
- London :
-
The survival of the fitter : lives of some African engineers / John Powell.
- Intermediate Technology,
- 1995.
- London :
-
The intermediate technology transfer unit : a handbook on operations / John Powell.
- Intermediate Technology,
- 1995.
- London :