Cotton, H. Electrical technology (6 ed.).
Lua i Stíl Chicago (17ú heag.)Cotton, H. Electrical Technology. 6 ed.
Lua MLA (8ú heag.)Cotton, H. Electrical Technology. 6 ed.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)