The urban age. World Bank.
芝加哥风格引文The Urban Age. Washington, D.C: World Bank.
MLA引文The Urban Age. World Bank.
警告：这些引文格式不一定是100％准确.
APA引文
The urban age. World Bank.
芝加哥风格引文The Urban Age. Washington, D.C: World Bank.
MLA引文The Urban Age. World Bank.