Northrop, R. B. (1997). Introduction to instrumentation and measurements. CRC Press.
Lua i Stíl Chicago (17ú heag.)Northrop, Robert B. Introduction to Instrumentation and Measurements. Boca Raton, Fla: CRC Press, 1997.
Lua MLA (9ú heag.)Northrop, Robert B. Introduction to Instrumentation and Measurements. CRC Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.