National Joint Apprenticeship and Training Committee for the Electrical Industry. (2008). Fundamentals of instrumentation (2nd ed.). Delmar Cengage Learning.
Lua i Stíl Chicago (17ú heag.)National Joint Apprenticeship and Training Committee for the Electrical Industry. Fundamentals of Instrumentation. 2nd ed. Clifton Park, NY: Delmar Cengage Learning, 2008.
Lua MLA (8ú heag.)National Joint Apprenticeship and Training Committee for the Electrical Industry. Fundamentals of Instrumentation. 2nd ed. Delmar Cengage Learning, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.