Cita APA (7th ed.)

Walvin, J. (2007). A short history of slavery. Penguin.

Cita Chicago (17th ed.)

Walvin, James. A Short History of Slavery. London: Penguin, 2007.

Cita MLA (9th ed.)

Walvin, James. A Short History of Slavery. Penguin, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.