Cita APA (7a ed.)

Thomas, H. (1995). An unfinished history of the world. Papermac.

Cita Chicago Style (17a ed.)

Thomas, Hugh. An Unfinished History of the World. London: Papermac, 1995.

Cita MLA (9a ed.)

Thomas, Hugh. An Unfinished History of the World. Papermac, 1995.