Worringer, W. (1957). Form in Gothic. A. Tiranti.
Lua i Stíl Chicago (17ú heag.)Worringer, Wilhelm. Form in Gothic. London: A. Tiranti, 1957.
Lua MLA (9ú heag.)Worringer, Wilhelm. Form in Gothic. A. Tiranti, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.