Não informado. (1954). Instruments and automation. Instruments Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Instruments and Automation. Pontiac, Ill: Instruments Publishing, 1954.
Lua MLA (8ú heag.)Não informado. Instruments and Automation. Instruments Publishing, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.