MLA

Hörmann, Karl, and Thomas Verse. Surgery for Sleep-disordered Breathing. Springer Berlin Heidelberg, 2005.

APA

Hörmann, K., & Verse, T. (2005). Surgery for Sleep-Disordered Breathing. Springer Berlin Heidelberg.

Chicago

Hörmann, Karl, Karl Hörmann, and Thomas Verse. Surgery for Sleep-Disordered Breathing. : Springer Berlin Heidelberg, 2005.