Hibbs, J., & Butler, E. (2005). The dangers of bus re-regulation and other perspectives on markets in transport. Institute of Economic Affairs.
Cita Chicago (17th ed.)Hibbs, John, i Eamonn Butler. The Dangers of Bus Re-regulation and Other Perspectives on Markets in Transport. London: Institute of Economic Affairs, 2005.
Cita MLA (9th ed.)Hibbs, John, i Eamonn Butler. The Dangers of Bus Re-regulation and Other Perspectives on Markets in Transport. Institute of Economic Affairs, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.