Cita APA (7th ed.)

Grenville, J. A. S. (2005). A history of the world from the 20th to the 21st century. Routledge.

Cita Chicago (17th ed.)

Grenville, J. A. S. A History of the World from the 20th to the 21st Century. London: Routledge, 2005.

Cita MLA (9th ed.)

Grenville, J. A. S. A History of the World from the 20th to the 21st Century. Routledge, 2005.