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4
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Rural water supply and sanitation : time for a change / Anthony A. Churchill ; with the ass. of David de Ferranti...[et al.].
- World Bank,
- 1987.
- Washington, DC :
-
The impact of agricultural research in tropical Africa : a study of the collaboration between the international and national research systems / Hans E. Jahnke, Dieter Kirschke, and Johannes Lagemann ; in collab. with K.J. Billing...[et al.].
- World Bank,
- 1987.
- Washington, DC :
-
Community water supply : the handpump option / Saul Arlosoroff...[et al.].
- World Bank,
- 1987.
- Washington, DC :
-
Terminology of forestry and related subjects = Terminologie forestière et vocabulaire connexe / Jean Eugène Gorse.
- World Bank,
- 1987.
- Washington, DC :