Biblio

Naturgerechte Technologien, Bau- und Wirtschaftsberatung -Frankfurt, GE, TBW, «Treatment of tannery wastewater». German Appropriate Technology Exchange (GATE) /Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ), Eschborn, Germany, p. 11 p. : 3 fig., 1 photogr., 3 tabs., 2002.

G. B. Oxfam - Oxford, «Oxfam guidelines for water treatment in emergencies». Oxfam, Oxford, UK, p. 45 p. : 4 fig., 2001.

M. Meybeck, Kimstach, V., y Baroudy, E., A water quality assessment of the former Soviet Union. London, UK: E & FN Spon, 1998, p. xvii, 611 p. : fig., tab.

S. Dermijn y van de Drift, M., «Concrete corrosion in dug wells». SAWA, Utrecht, The Netherlands, p. 11 p. : fig., 1987.