Homburger, W. S., Keefer, L. E., & McGrath, W. R. (1982). Transportation and traffic engineering handbook (2a. ed.). Prentice-Hall.
Cita Chicago (17th ed.)Homburger, Wolfgang S., Louis E. Keefer, i William R. McGrath. Transportation and Traffic Engineering Handbook. 2a. ed. Englewood Cliffs: Prentice-Hall, 1982.
Cita MLA (9th ed.)Homburger, Wolfgang S., et al. Transportation and Traffic Engineering Handbook. 2a. ed. Prentice-Hall, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.