Kene, J. W. (1995). Fisica.
Lua i Stíl Chicago (17ú heag.)Kene, Joseph W. Fisica. 1995.
Lua MLA (9ú heag.)Kene, Joseph W. Fisica. 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)