APA (7th ed.) Citation

Maidl, B., Thewes, M., & Maidl, U. (2013). Handbook of tunnel engineering (1. ed.). Ernst.

Chicago Style (17th ed.) Citation

Maidl, Bernhard, Markus Thewes, and Ulrich Maidl. Handbook of Tunnel Engineering. 1. ed. Berlin: Ernst, 2013.

MLA (9th ed.) Citation

Maidl, Bernhard, et al. Handbook of Tunnel Engineering. 1. ed. Ernst, 2013.