Digital and analog controls / Marvin A. Needler, Don E. Baker. Needler, Marvin A. Baker, Don E. Electronic control. TK7881.2 .N44 1985 629.895 NED Includes bibliographical references and index. Reston, Va : Reston Pub. Co., c1985. c1985. 1985 Text viii, 424 p. : eng