Festo Didactic KG, Ackermann, H., Hopf, H., & Plagemann, H. Training system for control technology programmable logic controllers (Basic Level): Book of exercises with solutions. 1989.
Chicago Style (17th ed.) CitationFesto Didactic KG, H. Ackermann, H. Hopf, and H. Plagemann. Training System for Control Technology Programmable Logic Controllers (Basic Level): Book of Exercises with Solutions. Esslingen 1: 1989.
MLA (9th ed.) CitationFesto Didactic KG, et al. Training System for Control Technology Programmable Logic Controllers (Basic Level): Book of Exercises with Solutions. 1989.
Warning: These citations may not always be 100% accurate.