Não informado. (1959). Instruments and control systems. Chilton.
Lua i Stíl Chicago (17ú heag.)Não informado. Instruments and Control Systems. Radnor, Pa: Chilton, 1959.
Lua MLA (8ú heag.)Não informado. Instruments and Control Systems. Chilton, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.