APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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