HEILBRONER, R. L. (1968). Understanding Microeconomics. Prentice Hall.
Cita Chicago (17th ed.)HEILBRONER, Robert L. Understanding Microeconomics. Englewood: Prentice Hall, 1968.
Cita MLA (9th ed.)HEILBRONER, Robert L. Understanding Microeconomics. Prentice Hall, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.