APA引文

World Bank Group. (1999). Natural gas: Private sector participation and market development. World Bank Group.

Chicago Style (17th ed.) Citation

World Bank Group. Natural Gas: Private Sector Participation and Market Development. Washington, D.C: World Bank Group, 1999.

MLA引文

World Bank Group. Natural Gas: Private Sector Participation and Market Development. World Bank Group, 1999.

警告：這些引文格式不一定是100％准確.