Collier, P. (2006). Is aid oil? An analysis of whether Africa can absorb more aid. Elsevier.
芝加哥风格引文Collier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
MLA引文Collier, P. Is Aid Oil? An Analysis of Whether Africa Can Absorb More Aid. Elsevier, 2006.
警告：这些引文格式不一定是100％准确.