APA引文

Case, K. E. (2007). Principles of economics. Upper Saddle River, NJ: Pearson/Prentice Hall.

Trích dẫn kiểu Chicago

Case, Karl E. Principles of Economics. Upper Saddle River, NJ: Pearson/Prentice Hall, 2007.

MLA引文

Case, Karl E. Principles of Economics. Upper Saddle River, NJ: Pearson/Prentice Hall, 2007.

警告：這些引文格式不一定是100％准確.