Davis, H. L., & George, H. [. d. O. The Labour Question.
Lua i Stíl Chicago (17ú heag.)Davis, Harry Llewelyn, agus Henry [Verf. d. Orig.-Textes] George. The Labour Question. London.
Lua MLA (8ú heag.)Davis, Harry Llewelyn, agus Henry [Verf. d. Orig.-Textes] George. The Labour Question.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.