Styl cytowania APA

Buys, P., Wheeler, D., & Deichmann, U. (2006). Road Network Upgrading And Overland Trade Expansion In Sub-Saharan Africa. The World Bank.

Styl cytowania Chicago

Buys, Piet, David Wheeler, i Uwe Deichmann. Road Network Upgrading And Overland Trade Expansion In Sub-Saharan Africa. Washington, D.C: The World Bank, 2006.

Styl cytowania MLA

Buys, Piet, et al. Road Network Upgrading And Overland Trade Expansion In Sub-Saharan Africa. The World Bank, 2006.