Cita APA (7th ed.)

Hackworth, J. R., & Hackworth, F. D. (2004). Programmable logic controllers: Programming methods and applications. Pearson.

Cita Chicago (17th ed.)

Hackworth, John R., i Frederick D. Hackworth. Programmable Logic Controllers: Programming Methods and Applications. Upper Saddle River: Pearson, 2004.

Cita MLA (9th ed.)

Hackworth, John R., i Frederick D. Hackworth. Programmable Logic Controllers: Programming Methods and Applications. Pearson, 2004.