APA (7th ed.) Citation

THOMAS, H. (1965). The Spanish Civil War. Penguin Books.

Chicago Style (17th ed.) Citation

THOMAS, Hugh. The Spanish Civil War. Penguin Books, 1965.

MLA (9th ed.) Citation

THOMAS, Hugh. The Spanish Civil War. Penguin Books, 1965.

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