Não informado. (1930). Electronics: The international magazine of electronics technology. McGraw-Hill Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Electronics: The International Magazine of Electronics Technology. New York: McGraw-Hill Publications, 1930.
Lua MLA (8ú heag.)Não informado. Electronics: The International Magazine of Electronics Technology. McGraw-Hill Publications, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.