Cita APA (7th ed.)

Engel, W. (1999). Soundcheck: [Gabriele Aust.]. Metzler.

Cita Chicago (17th ed.)

Engel, Walther. Soundcheck: [Gabriele Aust.]. Braunschweig: Metzler, 1999.

Cita MLA (8th ed.)

Engel, Walther. Soundcheck: [Gabriele Aust.]. Metzler, 1999.