APA (7th ed.) Citation

Feng, J., Yang, H., & Zhang, Y. A Study on Excavation Characteristics of Tunnel with Upper-Soft Lower-Hard Stratum. Wiley.

Chicago Style (17th ed.) Citation

Feng, Jun, Hui-juan Yang, and Yu Zhang. A Study on Excavation Characteristics of Tunnel with Upper-Soft Lower-Hard Stratum. Wiley.

MLA (9th ed.) Citation

Feng, Jun, et al. A Study on Excavation Characteristics of Tunnel with Upper-Soft Lower-Hard Stratum. Wiley.