Middleton, Robert Gordon, 1908- Audio technology systems : principles, applications, and troubleshooting / Derek Cameron [i.e. R. G. Middleton]. - Reston, Va. : Reston Pub. Co., c1978. - x, 282 p. : ill. ; 24 cm. Includes index. ISBN: 0879090502 LCCN: 77010969 Subjects--Topical Terms: Sound--Recording and reproducing. LC Class. No.: TK7881.4 / .M53 Dewey Class. No.: 621.389 3 CAM