Cita APA (7a ed.)

Carlson, R., & Smith, T. R. (2009). The signal (Unabridged.). Recorded Books Inc..

Cita Chicago Style (17a ed.)

Carlson, Ron, y T. Ryder Smith. The Signal. Unabridged. Prince Frederick: Recorded Books Inc., 2009.

Cita MLA (8a ed.)

Carlson, Ron, y T. Ryder Smith. The Signal. Unabridged. Recorded Books Inc., 2009.

Precaución: Estas citas no son 100% exactas.