The Spanish Civil War.

MLA

Thomas, Hugh. The Spanish Civil War. 3rd ed., rev. and enlarged Harmondsworth: Penguin Books, 1990.

APA

Thomas, H. (1990). The Spanish Civil War. 3rd ed., rev. and enlarged Harmondsworth: Penguin Books.

Chicago

Thomas, Hugh The Spanish Civil War. 3rd ed., rev. and enlarged Harmondsworth: Penguin Books, 1990.