APA ציטוט

Clark, J., & Veseth, M. (1987). Economics: Cost and choice. Harcourt brace.

Chicago Style (17th ed.) Citation

Clark, J.R, and Michael Veseth. Economics: Cost and Choice. San Diego: Harcourt brace, 1987.

ציטוט MLA

Clark, J.R, and Michael Veseth. Economics: Cost and Choice. Harcourt brace, 1987.