Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.