APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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