Wiring Diagrams Books, Square D Company, Automation and Control Business, P.O. Box 27446, Raleigh, N.C. 27611, USA
Basic principles of pneumatics and electropneumatics, FESTO Didactic, F. Ebel, S. Idler, G. Prede, D. Scholz, 3rd edition 2017, 211 pages, in color, bound.