Petruzella, F. D. (2005). Lab manual for programmable logic controllers with LogixPro PLC simulator. Boston: McGraw-Hill Higher Education.
Dyfyniad Arddull ChicagoPetruzella, Frank D. Lab Manual for Programmable Logic Controllers With LogixPro PLC Simulator. Boston: McGraw-Hill Higher Education, 2005.
Dyfyniad MLAPetruzella, Frank D. Lab Manual for Programmable Logic Controllers With LogixPro PLC Simulator. Boston: McGraw-Hill Higher Education, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.