Snyder, J. (1989). Medieval art: Painting-sculpture-architecture, 4th-14th century. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Snyder, James. Medieval Art: Painting-sculpture-architecture, 4th-14th Century. Upper Saddle River: Prentice-Hall, 1989.
Lua MLA (9ú heag.)Snyder, James. Medieval Art: Painting-sculpture-architecture, 4th-14th Century. Prentice-Hall, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.