APA (7th ed.) Citation

Gilbert, M. (1998). A history of the twentieth century: Volume two: 1933 -1951. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Gilbert, Martin. A History of the Twentieth Century: Volume Two: 1933 -1951. London: HarperCollins Publishers, 1998.

MLA (9th ed.) Citation

Gilbert, Martin. A History of the Twentieth Century: Volume Two: 1933 -1951. HarperCollins Publishers, 1998.