Cita APA

Porter, J., & Porter, J. (1977). Energy for road trasport in the United Kingdom. Crowthorne Berkshire: Transport Systems, Departamento Transport and Road Research Laboratory.

Citación estilo Chicago

Porter, J., y J. Porter. Energy for Road Trasport in the United Kingdom. Crowthorne Berkshire: Transport Systems, Departamento Transport and Road Research Laboratory, 1977.

Cita MLA

Porter, J., y J. Porter. Energy for Road Trasport in the United Kingdom. Crowthorne Berkshire: Transport Systems, Departamento Transport and Road Research Laboratory, 1977.