Cita APA (7th ed.)

Krüttli, R. (1999). Training with Bach: Roland Krüttli (Dt. Version.). Difem.

Cita Chicago (17th ed.)

Krüttli, Roland. Training with Bach: Roland Krüttli. Dt. Version. La Chaux-du-Milieu: Difem, 1999.

Cita MLA (8th ed.)

Krüttli, Roland. Training with Bach: Roland Krüttli. Dt. Version. Difem, 1999.