Vrasdonk, W. (1966). Richard of St. Victor and secular learning.
Lua i Stíl Chicago (17ú heag.)Vrasdonk, William. Richard of St. Victor and Secular Learning. 1966.
Lua MLA (8ú heag.)Vrasdonk, William. Richard of St. Victor and Secular Learning. 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.