APA (7th ed.) Citation

Overy. (2004). History of the 20th century. Times Books.

Chicago Style (17th ed.) Citation

Overy. History of the 20th Century. London: Times Books, 2004.

MLA (8th ed.) Citation

Overy. History of the 20th Century. Times Books, 2004.

Warning: These citations may not always be 100% accurate.