Friends of Schubert = Schubert Freunde.

MLA

Krause, Verena., et al. Friends of Schubert = Schubert Freunde. [Germany] : Profil, [2006]

APA

Krause, V., Berchtold, B., Eibensteiner, K., Milewski, T., Bind, W. & Brunner, W. (2006). Friends of Schubert = Schubert Freunde. [Germany] : Profil.

Chicago

Krause, Verena., Bernhard. Berchtold, Klaus. Eibensteiner, Tadeusz. Milewski, Werner. Bind and Wolfgang. Brunner. Friends of Schubert = Schubert Freunde. [Germany] : Profil, [2006]