APA-referens (7:e uppl.)

Knowles, D., Luscombe, D. E., & Brooke, C. N. L. (1988). The evolution of medieval thought (2nd ed.). Longman.

Chicago-referens (17:e uppl.)

Knowles, David, D. E. Luscombe, och Christopher Nugent Lawrence Brooke. The Evolution of Medieval Thought. 2nd ed. London: Longman, 1988.

MLA-referens (9:e uppl.)

Knowles, David, et al. The Evolution of Medieval Thought. 2nd ed. Longman, 1988.