Collier, P. (2006). Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier.
Chicago Style aipamenaCollier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
MLA aipamenaCollier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.