Knowles, D., & Luscombe, D. (1988). The evolution of Medieval thought (2nd ed.). Longman.
Cita Chicago (17th ed.)Knowles, David, i D.E Luscombe. The Evolution of Medieval Thought. 2nd ed. London: Longman, 1988.
Cita MLA (9th ed.)Knowles, David, i D.E Luscombe. The Evolution of Medieval Thought. 2nd ed. Longman, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.