Winpenny, J. T. (1991). Values for the environment: A guide to economic appraisal. Overseas Development Inst..
Citazione stile Chigago Style (17a edizione)Winpenny, James T. Values for the Environment: A Guide to Economic Appraisal. London: Overseas Development Inst., 1991.
Citatione MLA (8a ed.)Winpenny, James T. Values for the Environment: A Guide to Economic Appraisal. Overseas Development Inst., 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.