Παραπομπή σε μορφή APA (7η εκδ.)

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. https://doi.org/10.1002/9783433603536

Παραπομπή σε μορφή Chicago (17η εκδ.)

Maidl, Bernhard, Markus Thewes, Ulrich Maidl, Sturge David, και Sonja Frank. Handbook of Tunnel Engineering II: Basics and Additional Services for Design and Construction. Berlin, Germany: Ernst & Sohn, 2014. https://doi.org/10.1002/9783433603536.

Παραπομπή σε μορφή MLA (8th εκδ.)

Maidl, Bernhard, et al. Handbook of Tunnel Engineering II: Basics and Additional Services for Design and Construction. Ernst & Sohn, 2014. https://doi.org/10.1002/9783433603536.