Não informado. (1970). Egyptian Journal of Physics. National Information and Documentation Centre, Egyptian Physical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Egyptian Journal of Physics. Cairo: National Information and Documentation Centre, Egyptian Physical Society, 1970.
Lua MLA (8ú heag.)Não informado. Egyptian Journal of Physics. National Information and Documentation Centre, Egyptian Physical Society, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.