Biblio

B. Ministry o Secretariat, “National water resource policy : federal law 9,433 of January 8, 1997 [Brazil]”. Brazil, Ministry of Environment, Water Resources Secretariat, Brasilia, Brazil, p. 40 p., 1999.

S. Sharma, “Nepalese biotic score and its use in water quality assessment”, Water resources journal, pp. p. 51-59 : 4 tab., 1999.

K. Bais, Netherlands development assistance : 1997/1999 : proposals and results. The Hague, The Netherlands: Netherlands, Ministry of Foreign Affairs, NEDA, 1999, p. 48 p. : fig., maps, photogr. tab.

“no. 1”, Crystal clear. 1999.

“no. 1”, City development strategies. 1999.

“no. 13”, Waterfront. 1999.

“no. 176”, The Courier. 1999.

“no. 177”, The Courier. 1999.

“no. 2”, Liaison news. 1999.

“no. 2”, Crystal clear. 1999.

“no. 2”, Gate : technology and development. 1999.

“no. 2001/1”, EcoEng Newsletter. 1999.

“no. 202”, Water resources journal. 1999.

“no. 23”, Info CREPA. 1999.

“no. 3”, Liaison news. 1999.

“no. 4”, Gate : technology and development. 1999.

“no. 4 (1999)”, SANDEC news. 1999.

“no. 64”, Net werk : contactblad van de Stichting Net Werk voor de geschiedenis van hygiene en milieu. 1999.

“no. 65”, Net werk : contactblad van de Stichting Net Werk voor de geschiedenis van hygiene en milieu. 1999.

J. J. van Straaten, “Non conventional (low cost) urban sanitation”. Netherlands, Ministry of Foreign Affairs, NEDA, The Hague, The Netherlands, p. 37 p. : fig., tab., 1999.

M. Rahman, Nonmalignant health effects of arsenic exposure, vol. no. 612. Linkoping, Sweden: Linkoping University, 1999, p. 100 p. : fig., tab.

G. C. Pegram, Quibell, G., and Hinsch, M., “The nonpoint source impacts of peri-urban settlements in South Africa : implications for their management”, Water science and technology, pp. p. 283-290 : 1 tab., 1999.

Empresas Municipales de Cali -Cali, CO, Emcali, Normas y especificaciones de construccion para el sistema de acueducto. Cali, Colombia: EMCALI EICE E.S.P Empresas Municipales de Cali Empresa Industrial y Comercial del Estado, 1999, p. 106 ip. : tab., graphics.

M. M. Hoque, “Notes on low cost sanitation”. p. ca. 45 p. : fig., 1999.

A. Fang, “On-site sanitation : an international review of World Bank experience”. UNDP-World Bank Regional Water and Sanitation Group, New Delhi, India, p. 30 p. : photogr., tab., 1999.