Não informado. (1985). Power engineering & automation. Siemens Aktiengesellschaft.
Lua i Stíl Chicago (17ú heag.)Não informado. Power Engineering & Automation. Berlin: Siemens Aktiengesellschaft, 1985.
Lua MLA (8ú heag.)Não informado. Power Engineering & Automation. Siemens Aktiengesellschaft, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.