Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hackworth, John R., και Frederick D. Hackworth. Programmable Logic Controllers: Programming Methods and Applications. Upper Saddle River, N.J. : New Delhi,IN.: Merrill, Pearson Education, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

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