Cita APA (7a ed.)

Knowles, D. (1962). The evolution of medieval thought. Helicon.

Cita Chicago Style (17a ed.)

Knowles, David. The Evolution of Medieval Thought. Baltimore [etc.]: Helicon, 1962.

Cita MLA (9a ed.)

Knowles, David. The Evolution of Medieval Thought. Helicon, 1962.