APA aipamena

(2007). Strategic directions for human development in Papua New Guinea. Washington, D.C: World Bank.

Chicago Style aipamena

Strategic Directions for Human Development in Papua New Guinea. Washington, D.C: World Bank, 2007.

MLA aipamena

Strategic Directions for Human Development in Papua New Guinea. Washington, D.C: World Bank, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.