MLA

Hardt, Nicolas, and Johannes Kuttenberger. Craniofacial Trauma. Springer Berlin Heidelberg, 2010.

APA

Hardt, N., & Kuttenberger, J. (2010). Craniofacial Trauma. Springer Berlin Heidelberg.

Chicago

Hardt, Nicolas, and Johannes Kuttenberger. Craniofacial Trauma. : Springer Berlin Heidelberg, 2010.