APA引文

Coppock, L., & Dirk Mateer; Lee Coppock. (2014). Principles of economics. New York: W.W. Norton.

Trích dẫn kiểu Chicago

Coppock, Lee, và Dirk Mateer; Lee Coppock. Principles of Economics. New York: W.W. Norton, 2014.

MLA引文

Coppock, Lee, và Dirk Mateer; Lee Coppock. Principles of Economics. New York: W.W. Norton, 2014.

警告：這些引文格式不一定是100％准確.