Vand Water Lands,
«Gravity fed rural piped water schemes : design engineer's manual». Malawi, Department of Lands, Valuation and Water, Lilongwe, Malawi, p. 42 p.: fig., 1983.
Vand Water Lands,
«Gravity fed rural piped water schemes : rural water operator's handbook». Malawi, Department of Lands, Valuation and Water, Lilongwe, Malawi, p. 123 p.: ill., 1983.
