Cita APA (7th ed.)
May, A. D. (1990). Traffic Flow Fundamentals. Prentice Hall.
Cita Chicago (17th ed.)
May, Adolf D. Traffic Flow Fundamentals. New Jersey: Prentice Hall, 1990.
Cita MLA (9th ed.)
May, Adolf D. Traffic Flow Fundamentals. Prentice Hall, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.