Biblio

United Nations -New York, NY, US, “Non-conventional water resources use in developing countries : proceedings of the Interregional Seminar, Willemstad, Curacao, Netherlands Antilles, 22-28 April 1985”, vol. no. 22. United Nations Department of Technical Co-operation for Development, New York, NY, USA, p. xvi, 515 p.: fig., tab., 1987.

UNDTCD -New York, NY, US, The use of non-conventional water resources in developing countries, vol. no. 14. New York, NY, USA: United Nations, 1985, p. xviii, 278 p. : 26 fig., 2 maps, 26 tab.