John W. Webb & Ronald A. Reis Programmable Logic Controllers : Principles and Applications - 5th - India PHI Learning Pvt Ltd , 2002 - 460p. ; 18.57 x 2.64 x 24.18 cm ISBN: 9788120323087 Subjects--Topical Terms: PLC Arithmetic FunctionsElectromechanical Sequencing Dewey Class. No.: 629.89 WEB