APA引文
Hubbard, R. G., & Duggan, W. R. (2009). The aid trap: Hard truths about ending poverty. Columbia Business School Pub..
芝加哥风格引文
Hubbard, R. Glenn, 与 William R. Duggan. The Aid Trap: Hard Truths About Ending Poverty. New York: Columbia Business School Pub., 2009.
MLA引文
Hubbard, R. Glenn, 与 William R. Duggan. The Aid Trap: Hard Truths About Ending Poverty. Columbia Business School Pub., 2009.
警告:这些引文格式不一定是100%准确.