Hibbs, J. (2006). The Railways, the market and the government. Institute of Economic Affairs.
Cita Chicago (17th ed.)Hibbs, John. The Railways, the Market and the Government. London: Institute of Economic Affairs, 2006.
Cita MLA (9th ed.)Hibbs, John. The Railways, the Market and the Government. Institute of Economic Affairs, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.