APA-Zitierstil (7. Ausg.)

Colquhoun, J. C. (1867). William Wilberforce: His friends and his times (2. ed.). Longmans.

Chicago-Zitierstil (17. Ausg.)

Colquhoun, John C. William Wilberforce: His Friends and His Times. 2. ed. London: Longmans, 1867.

MLA-Zitierstil (9. Ausg.)

Colquhoun, John C. William Wilberforce: His Friends and His Times. 2. ed. Longmans, 1867.