Krugman, P. R. (2018). International Economics (10th.). Pearson India.
芝加哥风格引文Krugman, Paul R. International Economics. 10th. Pearson India, 2018.
MLA引文Krugman, Paul R. International Economics. 10th. Pearson India, 2018.
警告：这些引文格式不一定是100％准确.
APA引文