Baerwald, J. E. (1976). Transportation and Traffic Engineering Handbook. Prentice-Hall, Inc.
Cita Chicago (17th ed.)Baerwald, John E. Transportation and Traffic Engineering Handbook. Englewood Cliffs: Prentice-Hall, Inc, 1976.
Cita MLA (9th ed.)Baerwald, John E. Transportation and Traffic Engineering Handbook. Prentice-Hall, Inc, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.