Cita APA (7th ed.)

Wagner, F. A. (1980). Energy impacts of urban transportation improvements. Institute of Transportation Engineers.

Cita Chicago (17th ed.)

Wagner, Frederick A. Energy Impacts of Urban Transportation Improvements. Alexandría: Institute of Transportation Engineers, 1980.

Cita MLA (9th ed.)

Wagner, Frederick A. Energy Impacts of Urban Transportation Improvements. Institute of Transportation Engineers, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.