Cameron, J. J. (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.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումCameron, John Jagals. Valuing Water, Valuing Livelihoods: Guidance on Social Cost-benefit Analysis of Drinking Water Interventions, with Special Reference to Small Community Water Supplies. UK: World Health Organization, 2011.
MLA (8րդ խմբ.) ՄեջբերումCameron, John Jagals. 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.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.