APA (7th ed.) Zitazioa

World Bank & Zeng, D. Z. (2008). Knowledge, technology, and cluster-based growth in Africa. World Bank.

Chicago Style (17th ed.) Zitazioa

World Bank eta Douglas Zhihua Zeng. Knowledge, Technology, and Cluster-based Growth in Africa. Washington, DC: World Bank, 2008.

MLA (9th ed.) Zitazioa

World Bank eta Douglas Zhihua Zeng. Knowledge, Technology, and Cluster-based Growth in Africa. World Bank, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.