Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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