Food and Agriculture Organization of the United Nations & United Nations Environment Programme. Environment Management Service. (1983). Guidelines for the control of soil degradation. United Nations Environment Programme.
Citazione stile Chigago Style (17a edizione)Food and Agriculture Organization of the United Nations e United Nations Environment Programme. Environment Management Service. Guidelines for the Control of Soil Degradation. Rome: United Nations Environment Programme, 1983.
Citatione MLA (9a ed.)Food and Agriculture Organization of the United Nations e United Nations Environment Programme. Environment Management Service. Guidelines for the Control of Soil Degradation. United Nations Environment Programme, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.