Cita APA (7th ed.)

Ashley, M. (1957). The greatness of Oliver Cromwell. Macmillan.

Cita Chicago (17th ed.)

Ashley, Maurice. The Greatness of Oliver Cromwell. London: Macmillan, 1957.

Cita MLA (9th ed.)

Ashley, Maurice. The Greatness of Oliver Cromwell. Macmillan, 1957.