APA引文

Walton, G. M. (1998). Understanding economics today. Boston, Mass: Irwin/McGraw-Hill.

Trích dẫn kiểu Chicago

Walton, Gary M. Understanding Economics Today. Boston, Mass: Irwin/McGraw-Hill, 1998.

MLA引文

Walton, Gary M. Understanding Economics Today. Boston, Mass: Irwin/McGraw-Hill, 1998.

警告：這些引文格式不一定是100％准確.