Cita APA (7th ed.)
Khanna, S. K., & Justo, C. E. G. (2001). Highway engineering (8th ed.). Nem Chand.
Cita Chicago (17th ed.)
Khanna, S. K., i C. E. G. Justo. Highway Engineering. 8th ed. Roorkee: Nem Chand, 2001.
Cita MLA (9th ed.)
Khanna, S. K., i C. E. G. Justo. Highway Engineering. 8th ed. Nem Chand, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.