Biblio

WHO -Geneva, CH, World Health Organization, Guidelines for the safe use of wastewater, excreta and greywater. Volume II. Wastewater use in agriculture, 3rd ed.rd ed. Geneva, Switzerland: World Health Organization (WHO), 2006, p. xxiii, 196 p.: fig., tab.

WHO -Geneva, CH, World Health Organization, Guidelines for the safe use of wastewater, excreta and greywater. Volume III. Wastewater and excreta use in aquaculture, 3rd ed.rd ed. Geneva, Switzerland: World Health Organization (WHO), 2006, p. xviii, 140 p.: fig., tab.

WHO -Geneva, CH, World Health Organization, Guidelines for the safe use of wastewater, excreta and greywater. Volume IV: Excreta and greywater use in agriculture, 3rd ed.rd ed. Geneva, Switzerland: World Health Organization (WHO), 2006, p. xx, 182 p.: fig., tab.

WHO -Geneva, CH, World Health Organization, Guidelines for drinking-water quality. Vol. 3. Surveillance and control of community supplies, 2nd ed.nd ed. Geneva, Switzerland: World Health Organization (WHO), 1997, p. xii, 238 p. : fig., tab.

WHO -Geneva, CH, World Health Organization, “Building a healthy city : a practioners' guide : a step-by-step approach to implementing healthy city projects in low-income countries”. World Health Organization (WHO), Geneva, Switzerland, p. 35 p. : 5 boxes, 2 fig., 7 photogr., 1995.