Cita APA (7a ed.)

Webb, J. W., & Reis, R. A. (1999). Programmable logic controllers: Principles and applications (4a. ed.). Prentice Hall.

Cita Chicago Style (17a ed.)

Webb, John W., y Ronald A. Reis. Programmable Logic Controllers: Principles and Applications. 4a. ed. Upper Saddle River, NJ: Prentice Hall, 1999.

Cita MLA (9a ed.)

Webb, John W., y Ronald A. Reis. Programmable Logic Controllers: Principles and Applications. 4a. ed. Prentice Hall, 1999.