Richards, J. A. (1963). Modern university physics. Wiley.
Lua i Stíl Chicago (17ú heag.)Richards, James A. Modern University Physics. London: Wiley, 1963.
Lua MLA (9ú heag.)Richards, James A. Modern University Physics. Wiley, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.