Cita APA (7a ed.)

Banc Mundial. (1999). World development indicators: : 1999 on CD-ROM. The World Bank.

Cita Chicago Style (17a ed.)

Banc Mundial. World Development Indicators: : 1999 on CD-ROM. Washington: The World Bank, 1999.

Cita MLA (9a ed.)

Banc Mundial. World Development Indicators: : 1999 on CD-ROM. The World Bank, 1999.