APA Zitierstil

Watt, D. C. (1967). A history of the world in the twentieth century: 1. 1899-1918. A history of the world in the twentieth century.

Chicago Zitierstil

Watt, Donald C. "A History of the World in the Twentieth Century: 1. 1899-1918." A History of the World in the Twentieth Century 1967.

MLA Zitierstil

Watt, Donald C. "A History of the World in the Twentieth Century: 1. 1899-1918." A History of the World in the Twentieth Century, 1967.