APA引文

Case, K. E. (1989). Principles of economics. Englewood Cliffs, N.J: Prentice-Hall.

Trích dẫn kiểu Chicago

Case, Karl E. Principles of Economics. Englewood Cliffs, N.J: Prentice-Hall, 1989.

MLA引文

Case, Karl E. Principles of Economics. Englewood Cliffs, N.J: Prentice-Hall, 1989.

警告：這些引文格式不一定是100％准確.