Dyfyniad APA
Webb, J. W., & Reis, R. A. (2003). Programmable logic controllers: Principles and applications (5th ed.). Prentice Hall of India.
Dyfyniad Arddull Chicago
Webb, John W., and Ronald A. Reis. Programmable Logic Controllers: Principles and Applications. 5th ed. New Delhi: Prentice Hall of India, 2003.
Dyfyniad MLA
Webb, John W., and Ronald A. Reis. Programmable Logic Controllers: Principles and Applications. 5th ed. Prentice Hall of India, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.