A. Schmeulling and Getfert, W.,
“The amusing journey of the waterdrops”. Vereinigung Deutscher Gewasserschutz e. V., Bonn, Germany, p. 16 p. : ill.
Empresa de Acueducto y Alcantarillado de Cali S.A. ESP -Cali, CO, ACUACALI, Cali, C. O. Universida, and Cali, C. O. C. I. N. A. R. A. -,
“Conozcamos y cuidemos nuestro alcantarillado”. Empresa de Acueducto y Alcantarillado de Cali S.A. ESP – ACUACALI, Cali, Colombia, p. 22 p.
A. Sirry,
Local practices in urban management in secondary cities in Egypt : the case of Belbeis. Rotterdam, The Netherlands: Institute for Housing and Urban Development Studies, p. xvii, 101 p. : 42 fig., 20 tab.
World Bank -Washington, DC, US and Public-Private Infrastructure Advisory Facility -Washington, DC, US, PPIAF,
Private solutions for infrastructure in Cambodia : a country framework report. Washington, DC, USA: Public-Private Infrastructure Advisory Facility (PPIAF), p. xi, 84 p.: fig., maps, tab.
S. Africa. De ZA,
“Sanitation technology options”. South Africa, Department of Water Affairs and Forestry, Pretoria, South Africa, p. 30 p.; ill.; techn. drwng; tab.; fig.
Australian Agency for International Development -Canberra, ACT, AU, AusAid and Water and Sanitation Program -Washington, DC, US, WSP,
“Urban sewerage and sanitation : 30 years of experience and lessons”. Water and Sanitation Program, WSP, Washington, DC, USA, p. v, 59 p. : 5 fig., 8 tab.