Ellie Tragakes. (2019). Economics For The IB Diploma. Cambridge University Press.
芝加哥风格引文Ellie Tragakes. Economics For The IB Diploma. Cambridge University Press, 2019.
MLA引文Ellie Tragakes. Economics For The IB Diploma. Cambridge University Press, 2019.
警告：这些引文格式不一定是100％准确.