Não informado. (1990). Quantum. National Science Teachers Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Quantum. Washington: National Science Teachers Association, 1990.
Lua MLA (8ú heag.)Não informado. Quantum. National Science Teachers Association, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.