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	The International Cooperation of Local Authorities in the European Union: Germany, Spain, France, Italy, the United Kingdom, Sweden and the European Commission  report - 2010 - 120 pp Ed. AFD - Paris CUF - Paris
	Global Atlas of Excreta, Wastewater Sludge, and Biosolids Management  Moving Forward the Sustainable and Welcome Uses of a Global Resource book - 2008 - 632 pp Ed. UN-Habitat - Nairobi
	Water supply and sanitation by country  website Ed. Wikipédia -

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