Constant, J. (1976). Electronictrocardiogramafia.
Lua i Stíl Chicago (17ú heag.)Constant, J. Electronictrocardiogramafia. 1976.
Lua MLA (9ú heag.)Constant, J. Electronictrocardiogramafia. 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.