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3
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Appropriate industrial technology for energy for rural requirements / [contrib. by T. Turner...et al.].
- United Nations,
- 1979.
- New York, NY :
-
Septic tank practices / Peter Warshall ; with assistance of J.T. Winneberger & Greg Hewlett.
- Anchor,
- 1979.
- New York, NY :
-
Information sources on the leather and leather products industries / United Nations industrial development organization.
- United Nations,
- 1979.
- New York, NY :