APA-referens (7:e uppl.)
Maidl, B., Thewes, M., Maidl, U., David, S., & Frank, S. (2014). Handbook of tunnel engineering II: Basics and additional services for design and construction. Ernst & Sohn.
Chicago-referens (17:e uppl.)
Maidl, Bernhard, Markus Thewes, Ulrich Maidl, Sturge David, och Sonja Frank. Handbook of Tunnel Engineering II: Basics and Additional Services for Design and Construction. Berlin, Germany: Ernst & Sohn, 2014.
MLA-referens (9:e uppl.)
Maidl, Bernhard, et al. Handbook of Tunnel Engineering II: Basics and Additional Services for Design and Construction. Ernst & Sohn, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.