Style de citation APA (7e éd.)

Cromwell, O., Carlyle, T., & Traill, H. D. (1845). Thomas Carlyle. Oliver Cromwell's letters and speeches; with elucidations. C. Scribner's sons.

Style de citation Chicago (17e éd.)

Cromwell, Oliver, Thomas Carlyle, et Henry Duff Traill. Thomas Carlyle. Oliver Cromwell's Letters and Speeches; with Elucidations. New York: C. Scribner's sons, 1845.

Style de citation MLA (9e éd.)

Cromwell, Oliver, et al. Thomas Carlyle. Oliver Cromwell's Letters and Speeches; with Elucidations. C. Scribner's sons, 1845.