Opie, R. (2003). The 1920s scrapbook. New Cavendish.
Lua i Stíl Chicago (17ú heag.)Opie, Robert. The 1920s Scrapbook. London: New Cavendish, 2003.
Lua MLA (9ú heag.)Opie, Robert. The 1920s Scrapbook. New Cavendish, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.