When biospheres collide : a history of NASA's planetary protection programs
Urban transport and the environment : an international perspective
Urban transport and the environment : an international perspective
Transport, the environment and security : making the connection
Transport, the environment, and economic policy
Transport revolutions : moving people and freight without oil
Transportation planning and the future
Transportation and the environment : assessments and sustainability
Transport and environment : in search of sustainable solutions
Towards sustainable urban transportation : environmental dimension
Threats from car traffic to the quality of urban life : problems, causes, and solutions
The zero carbon car : green technology and the automotive industry