APA (7th ed.) Citation

Jeffrey, D. L. (1979). By things seen: Reference and recognition in medieval thought. University of Ottawa Press.

Chicago Style (17th ed.) Citation

Jeffrey, David L. By Things Seen: Reference and Recognition in Medieval Thought. Ottawa, Canada: University of Ottawa Press, 1979.

MLA (8th ed.) Citation

Jeffrey, David L. By Things Seen: Reference and Recognition in Medieval Thought. University of Ottawa Press, 1979.

Warning: These citations may not always be 100% accurate.