Sampson, G. P., & Chambers, W. B. (2002). Trade, environment, and the millennium (2nd edition.). United Nations University Press.
Lua i Stíl Chicago (17ú heag.)Sampson, Gary P., agus W. Bradnee Chambers. Trade, Environment, and the Millennium. 2nd edition. Tokyo ; New York: United Nations University Press, 2002.
Lua MLA (8ú heag.)Sampson, Gary P., agus W. Bradnee Chambers. Trade, Environment, and the Millennium. 2nd edition. United Nations University Press, 2002.
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