(1954). Vol. 67, № 2; The Proceedings of the Physical Society. Ser. A. 1954.
Lua i Stíl Chicago (17ú heag.)Vol. 67, № 2; The Proceedings of the Physical Society. Ser. A. 1954, 1954.
Lua MLA (9ú heag.)Vol. 67, № 2; The Proceedings of the Physical Society. Ser. A. 1954, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.