References
- Association of Metropolitan Authorities . 1994 . Ticket to Ride. Policies for Better Buses , London : AMA .
- Department of the Environment . 1990 . This Common Inheritance , London : HMSO . (Cm 1200,
- Department of Transport . 1994 . Bus & Coach Statistics Great Britain 1993/1994 , London : HMSO .
- Royal Commission on Environmental Pollution . 1994 . Eighteenth Report: Transport and the Environment , London : HMSO . (Cm 2674,