Cita APA (7th ed.)

HAVEMAN, R. H., & KNOPF. Kenyon A. (1981). The market system: An introduction to microeconomics.--Ed.4. John Wiley and Sons.

Cita Chicago (17th ed.)

HAVEMAN, Robert H., i KNOPF. Kenyon A. The Market System: An Introduction to Microeconomics.--Ed.4. New York: John Wiley and Sons, 1981.

Cita MLA (9th ed.)

HAVEMAN, Robert H., i KNOPF. Kenyon A. The Market System: An Introduction to Microeconomics.--Ed.4. John Wiley and Sons, 1981.