APA (7th ed.) Zitazioa
Calderisi, R. (2006). The trouble with Africa: Why foreign aid isn't working. Yale University Press.
Chicago Style (17th ed.) Zitazioa
Calderisi, Robert. The Trouble with Africa: Why Foreign Aid Isn't Working. New Haven: Yale University Press, 2006.
MLA (9th ed.) Zitazioa
Calderisi, Robert. The Trouble with Africa: Why Foreign Aid Isn't Working. Yale University Press, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.