Não informado. (1973). EE systems engineering today. Chilton.
Lua i Stíl Chicago (17ú heag.)Não informado. EE Systems Engineering Today. Radnor, Pa: Chilton, 1973.
Lua MLA (8ú heag.)Não informado. EE Systems Engineering Today. Chilton, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.