Cita APA (7th ed.)
Garber , N. J., & Hoel Lester A. (2015). Traffic and Highway Engineering (3rd ed.). Cengage Learning.
Cita Chicago (17th ed.)
Garber , Nicholas J., i Hoel Lester A. Traffic and Highway Engineering. 3rd ed. Delhi: Cengage Learning, 2015.
Cita MLA (9th ed.)
Garber , Nicholas J., i Hoel Lester A. Traffic and Highway Engineering. 3rd ed. Cengage Learning, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.