Cita APA (7th ed.)

Partsch, S., & Treumund, F. (2003). Paul Klee 1879-1940. Taschen.

Cita Chicago (17th ed.)

Partsch, Susanna, i Felix Treumund. Paul Klee 1879-1940. Köln: Taschen, 2003.

Cita MLA (8th ed.)

Partsch, Susanna, i Felix Treumund. Paul Klee 1879-1940. Taschen, 2003.