F. J. S. O. P. A. C. - Suva,
« SOPAC water and sanitation ». SOPAC (South Pacific Applied Geoscience Commission), Suva, Fiji.
« Soundings from around the world ». World Neighbors, Oklahoma City, OK, USA.
UNDP -New York, NY, US,
« Source ». UNDP Division of Information, New York, NY, USA.
USAID -Washington, DC, US et Horsley and Witten -Sandwich, MA, US,
« Source water protection: a training manual for communities in Nicaragua ». US Environmental Protection Agency (EPA), Washington, DC, USA, p. 57 p. : fig., fotographs.
T. F. Bastemeijer,
« Southern Darfur province of Sudan ». IRC, The Hague, The Netherlands, p. Slide series (64 slides + text, 3p.).
« Special report / SWECO-VBB ». SWECO-VBB, Stockholm, Sweden.
Special report / Water Resources Research Center. Honolulu, HI, USA: University of Hawaii at Manoa, Water Resources Research Center.
CTA -Wageningen, NL, Technical Centre for Agricultural and Rural Cooperation ACP-EU,
« Spore ». Technical Centre for Agriculture and Rural Cooperation (CTA), Wageningen, The Netherlands.