Lua APA (7ú heag.)

Stavins,Robert N. (2012). Economics of the Environment (6th.). Norton.

Lua i Stíl Chicago (17ú heag.)

Stavins,Robert N. Economics of the Environment. 6th. New York: Norton, 2012.

Lua MLA (9ú heag.)

Stavins,Robert N. Economics of the Environment. 6th. Norton, 2012.

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