Gwilliam, K. M., & Bofinger, H. (2011). Africa's transport infrastructure: Mainstreaming maintenance and management. World Bank.
Chicagoスタイル(17版)引用形式Gwilliam, K. M., , Heinrich Bofinger. Africa's Transport Infrastructure: Mainstreaming Maintenance and Management. Washington, D.C.: World Bank, 2011.
MLA(9版)引用形式Gwilliam, K. M., , Heinrich Bofinger. Africa's Transport Infrastructure: Mainstreaming Maintenance and Management. World Bank, 2011.