APA (7th ed.) Citation

Chadwick, O. (1964). The reformation (1st published.). Penguin.

Chicago Style (17th ed.) Citation

Chadwick, Owen. The Reformation. 1st published. Baltimore [etc.]: Penguin, 1964.

MLA (9th ed.) Citation

Chadwick, Owen. The Reformation. 1st published. Penguin, 1964.

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