RUSSELL, B. (1997). ABC of relativity. Routledge.
Lua i Stíl Chicago (17ú heag.)RUSSELL, Bertrand. ABC of Relativity. London: Routledge, 1997.
Lua MLA (9ú heag.)RUSSELL, Bertrand. ABC of Relativity. Routledge, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.