World Bank. (1997). Clear water, blue skies: China's environment in the new century. World Bank.
Chicagoスタイル(17版)引用形式World Bank. Clear Water, Blue Skies: China's Environment in the New Century. .Washington, D.C: World Bank, 1997.
MLA(9版)引用形式World Bank. Clear Water, Blue Skies: China's Environment in the New Century. World Bank, 1997.
警告: この引用は必ずしも正確ではありません.