Field trials of the prototype pounder rig, Uganda, 20th August - 13t h November 1999 : a human powered drill rig for shallow small diamet er wells for domestic and agricultural water supply, developed in Ugand a and UK through project funding and support from Government and people of Uganda, DFID, DANIDA, and UNICEF / Peter Ball and Kerstin Danert
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TextPublication details: Cranfield University, 1999Description: 43 p. : ill., col. ; 30 cmSubject(s): DDC classification: - 6128.114 22
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