Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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