Cita APA (7a ed.)

Northup, S., & Fernandez, P. J. (2013). Twelve years a slave (Unabridged.). Recorded Books Inc..

Cita Chicago Style (17a ed.)

Northup, Solomon, y Peter Jay Fernandez. Twelve Years a Slave. Unabridged. Prince Frederick: Recorded Books Inc., 2013.

Cita MLA (8a ed.)

Northup, Solomon, y Peter Jay Fernandez. Twelve Years a Slave. Unabridged. Recorded Books Inc., 2013.

Precaución: Estas citas no son 100% exactas.