Lua APA (7ú heag.)

World Bank. (1997). Clear water, blue skies: China's environment in the new century. World Bank.

Lua i Stíl Chicago (17ú heag.)

World Bank. Clear Water, Blue Skies: China's Environment in the New Century. .Washington, D.C: World Bank, 1997.

Lua MLA (9ú heag.)

World Bank. Clear Water, Blue Skies: China's Environment in the New Century. World Bank, 1997.

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