GUPTA, B. G. (2014). Highway and bridge engineering. Standard Publishers.
Cita Chicago (17th ed.)GUPTA, B.L. Gupta. Highway and Bridge Engineering. Standard Publishers, 2014.
Cita MLA (9th ed.)GUPTA, B.L. Gupta. Highway and Bridge Engineering. Standard Publishers, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.