Lewis, W. W. (1965). The protection of transmission systems against lightning. Dover Publications.
Lua i Stíl Chicago (17ú heag.)Lewis, Walter Wallace. The Protection of Transmission Systems Against Lightning. New York: Dover Publications, 1965.
Lua MLA (8ú heag.)Lewis, Walter Wallace. The Protection of Transmission Systems Against Lightning. Dover Publications, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.