IUCN--The World Conservation Union, (Nature Conservancy (U.S, & World Bank. (2005). ?How much is an ecosystem worth: Assessing the economic value of conservation. IUCN, the Nature Conservancy, the World Bank.
Citace podle Chicago (17th ed.)IUCN--The World Conservation Union, (Nature Conservancy (U.S, a World Bank. ?How Much Is an Ecosystem Worth: Assessing the Economic Value of Conservation. .Washington, DC: IUCN, the Nature Conservancy, the World Bank, 2005.
Citace podle MLA (9th ed.)IUCN--The World Conservation Union, et al. ?How Much Is an Ecosystem Worth: Assessing the Economic Value of Conservation. IUCN, the Nature Conservancy, the World Bank, 2005.
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