Penguin Books. (1956). The Penguin Story MCMXXXV MCMLVI. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Penguin Books. The Penguin Story MCMXXXV MCMLVI. Harmondsworth [u.a.]: Penguin Books, 1956.
Lua MLA (8ú heag.)Penguin Books. The Penguin Story MCMXXXV MCMLVI. Penguin Books, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.