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Ongley, E.D.

Helmer, R., Ongley, E.D. & Peters, N.E., 1998. Water quality - a global concern : paper no. 13,

Fecha publicación: 30/12/2004

Ongley, E.D., 1997. Guidelines on water and sustainable development : principles and policy options, (Water resources series / ESCAP no. 77) New York, NY, USA: United Nations.

Fecha publicación: 30/12/2004

Ongley, E.D., 1996. Matching water quality programs to management needs in developing countries : the challenge of program modernization, Burlington, Ont, Canada: Canada Centre for Inland Waters. Available at: https://es.ircwash.org/sites/default/files/242-96MA-13689.pdf.

Fecha publicación: 30/12/2004

Ongley, E.D., Fraser, A.S. & Meybeck, M., 1995. Water quality of world river basins, (UNEP environment library no. 14) Nairobi, Kenya: UNEP, United Nations Environment Programme.

Fecha publicación: 30/12/2004

Ongley, E.D., 1993. Global water pollution : challenges and opportunities,

Fecha publicación: 30/12/2004

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