Weinreben Nunn, E.B.

Nunn, E.B.Weinreben, 1988. Constraints and opportunities in providing water and sanitation to spontaneous settlements, Loughborough, UK: Water, Engineering and Development Centre, Loughborough University of Technology, WEDC. Available at: http://fr.ircwash.org/sites/default/files/205.1-88CO-8796.pdf.