FRIEDMAN, M. (1981). The Invisible hand in economics and politics. ISEAS.
Cita Chicago (17th ed.)FRIEDMAN, Milton. The Invisible Hand in Economics and Politics. Singapura: ISEAS, 1981.
Cita MLA (9th ed.)FRIEDMAN, Milton. The Invisible Hand in Economics and Politics. ISEAS, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.