Nielsen, L. (2009). Global relative poverty. International Monetary Fund.
芝加哥风格引文Nielsen, Lynge. Global Relative Poverty. [Washington D.C.]: International Monetary Fund, 2009.
MLA引文Nielsen, Lynge. Global Relative Poverty. International Monetary Fund, 2009.
警告：这些引文格式不一定是100％准确.