Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.