Cita APA (7th ed.)

Büchner, C., O'Kane, R., & Gallwitz, K. (2001). listening_voices_0.1.

Cita Chicago (17th ed.)

Büchner, Christiane, Robert O'Kane, i Klaus Gallwitz. Listening_voices_0.1. Bad Ems, 2001.

Cita MLA (8th ed.)

Büchner, Christiane, et al. Listening_voices_0.1. 2001.