APA (7th ed.) Citation

Wedgwood, C. V. (1973). Oliver Cromwell (Rev., augm.ed.). Duckworth.

Chicago Style (17th ed.) Citation

Wedgwood, Cicely V. Oliver Cromwell. Rev., augm.ed. London: Duckworth, 1973.

MLA (9th ed.) Citation

Wedgwood, Cicely V. Oliver Cromwell. Rev., augm.ed. Duckworth, 1973.