Kessler, A. (2006). Moving people - towards collective action in soil and water conservation: Experiences from the Bolivian mountain valleys. Wageningen, The Netherlands: Wageningen University and Research Centre, Department of Environmental Sciences, Erosion and Soil & Water Conservation Group.
शिकागो स्टाइल उद्धरणKessler, Aad. Moving People - Towards Collective Action in Soil and Water Conservation: Experiences From the Bolivian Mountain Valleys. Wageningen, The Netherlands: Wageningen University and Research Centre, Department of Environmental Sciences, Erosion and Soil & Water Conservation Group, 2006.
एमएलए उद्धरणKessler, Aad. Moving People - Towards Collective Action in Soil and Water Conservation: Experiences From the Bolivian Mountain Valleys. Wageningen, The Netherlands: Wageningen University and Research Centre, Department of Environmental Sciences, Erosion and Soil & Water Conservation Group, 2006.