W. Warner, Haarstad, K., and Lystad, H.,
“Evaluating ecological sanitation systems (EvaSan) for handling human waste”. Jordforsk, Norwegian Center for Soil and Environmental Research, As, Norway, p. 111 p. : fig., tab., 1999.
P. Kolsky and Cave, B.,
“Groundwater, latrines and health”, vol. no. 163. Water and Environmental Health at London and Loughborough (WELL), London, UK, p. viii, 29 p. : 6 boxes, 4 fig., 9 tab., 1999.
N. R. Mudege and Mujuru, L.,
“Integrated water supply and sanitation project : evaluation report”. Institute of Water and Sanitation Development, Harare, Zimbabwe, p. 41, [18] p. : 2 boxes, fig., tab., 1999.
G. Howard,
“On-site sanitation and groundwater : the art of balancing unknown risks?”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 2-5 : 3 photogr., 1999.
M. S. Islam, Lawrence, A. R., Macdonald, D., and Ahmed, K. M.,
“Pit latrines : a source of contamination in peri-urban Dhaka?”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 6-8 : 2 fig., 1 photogr., 1999.
U. Frohlich,
“Private sector - just a new hope? : report on the 15th AGUASAN workshop June 28 - July 2, 1999”. SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. ca. 100 p. : fig., photogr., 1999.
UNICEF -New York, NY, US. Water and Environmental Sanitation Section,
“Report on knowledge, attitude and practices of communities in Nigeria”. UNICEF Water, Environment and Sanitation Section, New York, NY, USA, p. iii, 74 p. : photogr., tabs, 1999.
World Bank -Washington, DC, US,
“Water and sanitation”, in
Tanzania : social sector review, 1999, pp. p. 160-179 (Chapter 8) : 3 boxes, 11 tab.