APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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