Maidl, B., Thewes, M., & Maidl, U. (2013). Handbook of tunnel engineering (First edition.). Ernst & Sohn.
Chicago Style (17th ed.) ZitazioaMaidl, Bernhard, Markus Thewes, eta Ulrich Maidl. Handbook of Tunnel Engineering. First edition. Berlin: Ernst & Sohn, 2013.
MLA (9th ed.) ZitazioaMaidl, Bernhard, et al. Handbook of Tunnel Engineering. First edition. Ernst & Sohn, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.