Johnson, D. (2006). Process control instrumentation technology (8th ed.). Prentice Hall of India.
Dyfyniad Arddull ChicagoJohnson, D.Curtis. Process Control Instrumentation Technology. 8th ed. New Delhi: Prentice Hall of India, 2006.
Dyfyniad MLAJohnson, D.Curtis. Process Control Instrumentation Technology. 8th ed. Prentice Hall of India, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.