Duffin, W. (1990). Electricity and magnetism: W. J. Duffin. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Duffin, W.J. Electricity and Magnetism: W. J. Duffin. London: McGraw-Hill, 1990.
Lua MLA (9ú heag.)Duffin, W.J. Electricity and Magnetism: W. J. Duffin. McGraw-Hill, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.