C. Pieck,
Catchment and storage of rainwater. Amsterdam, The Netherlands: TOOL, 1985, p. 52 p.: fig.
B. - BT,
“Design of rural water supply systems”. Bhutan, Royal Government, Thimphu, Bhutan, p. 27 p.: fig., schemes, tab., 1985.
R. J. Otis and Mara, D. D.,
“The design of small bore sewer systems”, vol. no. 14. World Bank, Washington, DC, USA, p. iv, 52 p. : fig., tab., 1985.
S. Y. Goh,
Laboratory and field testing of handpumps. Ottawa, Ont, Canada: International Development Research Centre (IDRC), 1985, p. 138 p.: fig., tab., ill.