Collier, P. (2006). Is aid oil? An analysis of whether Africa can absorb more aid. Elsevier.
Chicago-čujuhus (17. p.)Collier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
MLA-čujuhus (9. p.)Collier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
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