Clark, J., & Veseth, M. (1987). Economics: Cost and choice. Harcourt brace.
Chicago-čujuhus (17. p.)Clark, J.R, juo Michael Veseth. Economics: Cost and Choice. San Diego: Harcourt brace, 1987.
MLA-čujuhus (9. p.)Clark, J.R, juo Michael Veseth. Economics: Cost and Choice. Harcourt brace, 1987.
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