Não informado. (1970). Systems, computers, controls. Scripta Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Systems, Computers, Controls. Washington: Scripta Publishing, 1970.
Lua MLA (8ú heag.)Não informado. Systems, Computers, Controls. Scripta Publishing, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.