TY - BOOK AU - Bolton,W. TI - Programmable logic controllers SN - 0750647469 U1 - 629.89 22 PY - 2000/// [reprinted 2002,2001] CY - Amsterdam, Boston, New Delhi PB - Newnes, Elsevier India Pvt. Ltd. KW - Programmable controllers KW - Logic circuits KW - Programmable logic devices N1 - ncludes index ER -