Não informado. (1969). Computer & Control Abstracts. Institution of Electrical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Computer & Control Abstracts. London: Institution of Electrical Engineers, 1969.
Lua MLA (8ú heag.)Não informado. Computer & Control Abstracts. Institution of Electrical Engineers, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.