APA (7th ed.) Citation

Northup, S. (2014). Twelve years a slave. Graymalkin Media.

Chicago Style (17th ed.) Citation

Northup, Solomon. Twelve Years a Slave. Los Angeles: Graymalkin Media, 2014.

MLA (9th ed.) Citation

Northup, Solomon. Twelve Years a Slave. Graymalkin Media, 2014.

Warning: These citations may not always be 100% accurate.