APA aipamena

The World Bank (WB). (2008). Doing business 2009: Comparing regulation in 181 economies. Washington: World Bank.

Chicago Style aipamena

The World Bank (WB). Doing Business 2009: Comparing Regulation in 181 Economies. Washington: World Bank, 2008.

MLA aipamena

The World Bank (WB). Doing Business 2009: Comparing Regulation in 181 Economies. Washington: World Bank, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.