APA引文

Walton,Gary M, & Wykoff,Frank C. (1986). Understanding economics today (5.). Irwin.

Chicago Edition Citation

Walton,Gary M, and Wykoff,Frank C. Understanding Economics Today. 5. Chicago: Irwin, 1986.

MLA引文

Walton,Gary M, and Wykoff,Frank C. Understanding Economics Today. 5. Irwin, 1986.

警告：這些引文格式不一定是100％准確.