Rowell, G., & Herbert, S. (1987). Physics (low price edition.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Rowell, Gilbert, agus Sidney Herbert. Physics. low price edition. Cambridge: Cambridge University Press, 1987.
Lua MLA (8ú heag.)Rowell, Gilbert, agus Sidney Herbert. Physics. low price edition. Cambridge University Press, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.