APA (7th ed.) Citation

Matthews, H. L. (1970). Castro, a political biography. Penguin.

Chicago Style (17th ed.) Citation

Matthews, Herbert L. Castro, a Political Biography. Harmondsworth [England]: Penguin, 1970.

MLA (8th ed.) Citation

Matthews, Herbert L. Castro, a Political Biography. Penguin, 1970.

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