HAVEMAN, R. H., & KNOPF. Kenyon A. (1981). The market system: An introduction to microeconomics.--Ed.4. John Wiley and Sons.
Chicago-čujuhus (17. p.)HAVEMAN, Robert H., juo KNOPF. Kenyon A. The Market System: An Introduction to Microeconomics.--Ed.4. New York: John Wiley and Sons, 1981.
MLA-čujuhus (9. p.)HAVEMAN, Robert H., juo KNOPF. Kenyon A. The Market System: An Introduction to Microeconomics.--Ed.4. John Wiley and Sons, 1981.
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