Ewert, A. (1961). Studies in medival French, presented to Alfred Ewert in honour of his seventieth birthday. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Ewert, ALfred. Studies in Medival French, Presented to Alfred Ewert in Honour of His Seventieth Birthday. Oxford: Clarendon Press, 1961.
Lua MLA (9ú heag.)Ewert, ALfred. Studies in Medival French, Presented to Alfred Ewert in Honour of His Seventieth Birthday. Clarendon Press, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.