S. R. Tyler,
Comanagement of natural resources : local learning for poverty reduction. Ottawa, Ont, Canada: International Development Research Centre (IDRC), 2006, p. xi, 85 p. : fig.
M. Pradesh (S. IN et UN-HABITAT, Water for Asian Cities Programme Office -New Delhi, IN,
« Measures for ensuring sustainability of rainwater harvesting », vol. no. 2. UN-Habitat, United Nations Centre for Human Settlements, Nairobi, Kenya, p. 15 p. : 4 boxes, 2 tab., 2006.
M. Smith, de Groot, D., Perrot-Maître, D., et Bergkamp, G.,
Pay : establishing payments for watershed services, Reprint 2008ᵉ éd. Gland, Switzerland: IUCN - International Union for Conservation of Nature, 2006, p. 103 p. : 6 fig., 8 tab.
J. Halder,
Rain drops : a new hope. Dhaka, Bangladesh: NGO Forum for Drinking Water Supply and Sanitation, 2006, p. 14 p. : boxes.
UNESCO International Hydrological Programme --Paris, FR, UNESCO-IHP,
« Recharge systems for protecting and enhancing groundwater resources : proceedings of the 5th International Symposium on Management of Aquifer Recharge ISMAR5, Berlin, Germany, 11–16 June 2005 », vol. no. 13. UNESCO International Hydrological Programme, UNESCO-IHP, Paris, France, p. 913 p. : fig., tab., 2006.
S. Heap,
« A study of water supply and sanitation services in Shebedino Wereda of Sidama Zone: case of Midre-Genet. Research report 2. Action research on community-managed water supply, sanitation and hygiene services in Shebedino Wereda, Sidama Zone of Southern Nat », vol. no. 3. Plan Ethiopia, Addis Ababa, Ethiopia, p. v, 30 p. : 11 pict., 6 tab., 2006.
B. Webb, Hirata, R., Kruse, E., et Vrba, J.,
Sustainability of groundwater resources and its indicators, vol. no. 302. Wallingford, UK: IAHS Press, Institute of Hydrology, 2006, p. viii,205 p. : fig., tab.