Case, K. E. F. (2022). Principles of Economics (12th.). Noida.
芝加哥风格引文Case, Karl E; Fair. Principles of Economics. 12th. Pearson India Education Services: Noida, 2022.
MLA引文Case, Karl E; Fair. Principles of Economics. 12th. Noida, 2022.
警告：这些引文格式不一定是100％准确.