1947
Bibliografía (9 obras)
Measuring the marginal social costs of transport
2004
Railways
2002
Desarrollos recientes en economía del transporte
1998
Recent developments in transport economics
1997
Glance at the Toes (Creative Monochrome Contemporary Portfolio)
1993
Analysing demand for rail travel
1991
Economics of public transport
1982
Public versus private transport
1976
