Cita APA (7th ed.)

Martin, P. C. (2006). Bus use of shoulders. Transportation Research Board.

Cita Chicago (17th ed.)

Martin, Peter C. Bus Use of Shoulders. Washington, D.C: Transportation Research Board, 2006.

Cita MLA (9th ed.)

Martin, Peter C. Bus Use of Shoulders. Transportation Research Board, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.