Não informado. (1999). Physics Essays. Physics Essays Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Physics Essays. Québec, Canadá: Physics Essays Publications, 1999.
Lua MLA (8ú heag.)Não informado. Physics Essays. Physics Essays Publications, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.