Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.