APA aipamena

Sadoff, C. W., Whittington, D., & Grey, D. (2002). Africa's international rivers: An economic perspective. World Bank.

Chicago Style aipamena

Sadoff, Claudia W., Dale Whittington, and David Grey. Africa's International Rivers: An Economic Perspective. Washington, DC: World Bank, 2002.

MLA aipamena

Sadoff, Claudia W., et al. Africa's International Rivers: An Economic Perspective. World Bank, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.