Parr, E. A. Programmable controllers: an engineer's guide / E.A. Parr. - Oxford: Newnes, 1993, repr. 1997 - x, 325 p.: ill. ; 24 cm. Includes bibliographical references and index ISBN: 0750604980 Subjects--Topical Terms: Programmable controllers Dewey Class. No.: 629.895 PAR