Cameron, J. H. (2011). Valuing water, valuing livelihoods: Guidance on social cost- benefit analysis of drinking- water interventions, with special reference to small community water supplies. World health Organization.

Cameron, John HUnter. Valuing Water, Valuing Livelihoods: Guidance on Social Cost- Benefit Analysis of Drinking- Water Interventions, with Special Reference to Small Community Water Supplies. New York: World health Organization, 2011.

Cameron, John HUnter. Valuing Water, Valuing Livelihoods: Guidance on Social Cost- Benefit Analysis of Drinking- Water Interventions, with Special Reference to Small Community Water Supplies. World health Organization, 2011.