Shields, D. R. (1949). Jack B. Yeats: An appreciation.
Lua i Stíl Chicago (17ú heag.)Shields, Daniel Rev. Jack B. Yeats: An Appreciation. 1949.
Lua MLA (9ú heag.)Shields, Daniel Rev. Jack B. Yeats: An Appreciation. 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
