Baerwarld, J. E. (1965). Trafic engineering handbook. Institute of traffic enginers.
Cita Chicago Style (17a ed.)Baerwarld, John E. Trafic Engineering Handbook. Washington: Institute of traffic enginers, 1965.
Cita MLA (9a ed.)Baerwarld, John E. Trafic Engineering Handbook. Institute of traffic enginers, 1965.
Precaución: Estas citas no son 100% exactas.