Laboratory and field testing of handpumps
Yau, Goh Sing
Laboratory and field testing of handpumps - Ottawa: International Development Research Centre, 1985 - 138p.
Handpump
Experimental investigation
621.65.001.5 / M5
Laboratory and field testing of handpumps - Ottawa: International Development Research Centre, 1985 - 138p.
Handpump
Experimental investigation
621.65.001.5 / M5