Chapman, D. N., Metje, N., & Stark, A. (2017). Introduction to tunnel construction (Second edition.). CRC Press.
Cita Chicago (17th ed.)Chapman, David N., Nicole Metje, i Alfred Stark. Introduction to Tunnel Construction. Second edition. Boca Raton: CRC Press, 2017.
Cita MLA (9th ed.)Chapman, David N., et al. Introduction to Tunnel Construction. Second edition. CRC Press, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.