Cita APA (7th ed.)

Robertson, H. D. (1994). Manual of transportation engineering studies. Prentice-Hall.

Cita Chicago (17th ed.)

Robertson, H. Douglas. Manual of Transportation Engineering Studies. Englewood Cliffs: Prentice-Hall, 1994.

Cita MLA (9th ed.)

Robertson, H. Douglas. Manual of Transportation Engineering Studies. Prentice-Hall, 1994.