APA (7th ed.) Citation
Walton, G. M., & Wykoff, F. C. (1989). Understanding economics today (2.vyd.). IRWIN.
Chicago Style (17th ed.) Citation
Walton, Gary M., and Frank C. Wykoff. Understanding Economics Today. 2.vyd. Homewood: IRWIN, 1989.
MLA (9th ed.) Citation
Walton, Gary M., and Frank C. Wykoff. Understanding Economics Today. 2.vyd. IRWIN, 1989.
Warning: These citations may not always be 100% accurate.