APA (7th ed.) Citation

Spoerri, B. (2005). Ulrich Gasser: Komponist. Niggli [u.a.].

Chicago Style (17th ed.) Citation

Spoerri, Bettina. Ulrich Gasser: Komponist. Sulgen [u.a.]: Niggli [u.a.], 2005.

MLA (9th ed.) Citation

Spoerri, Bettina. Ulrich Gasser: Komponist. Niggli [u.a.], 2005.