APA (7th ed.) Citation

Thomas, H. (1977). The Spanish civil War (3rd ed.). Penguin.

Chicago Style (17th ed.) Citation

Thomas, Hugh. The Spanish Civil War. 3rd ed. Harmondsworth: Penguin, 1977.

MLA (9th ed.) Citation

Thomas, Hugh. The Spanish Civil War. 3rd ed. Penguin, 1977.