World Bank & Zeng, D. Z. (2008). Knowledge, technology, and cluster-based growth in Africa. World Bank.
Cita Chicago (17th ed.)World Bank i Douglas Zhihua Zeng. Knowledge, Technology, and Cluster-based Growth in Africa. Washington, DC: World Bank, 2008.
Cita MLA (9th ed.)World Bank i Douglas Zhihua Zeng. Knowledge, Technology, and Cluster-based Growth in Africa. World Bank, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.