Friedman, M., & Friedman, R. Tyranny of the status quo. Harcourt Brace Jovanich Publishers.
Cita Chicago (17th ed.)Friedman, Milton, i Rose Friedman. Tyranny of the Status Quo. Washington D.C.: Harcourt Brace Jovanich Publishers.
Cita MLA (9th ed.)Friedman, Milton, i Rose Friedman. Tyranny of the Status Quo. Harcourt Brace Jovanich Publishers.
Atenció: Aquestes cites poden no estar 100% correctes.
