Cita APA (7a ed.)

Carlyle, R. W. S., & Carlyle, A. J. (1950). A history of mediaeval political theory in the west (3rd imp.). William Blackwood & Sons.

Cita Chicago Style (17a ed.)

Carlyle, R. W. Sir, y A. J. Carlyle. A History of Mediaeval Political Theory in the West. 3rd imp. Edinburgh [etc.]: William Blackwood & Sons, 1950.

Cita MLA (9a ed.)

Carlyle, R. W. Sir, y A. J. Carlyle. A History of Mediaeval Political Theory in the West. 3rd imp. William Blackwood & Sons, 1950.