Humphries, James T., 1946 Industrial electronics / [Book]. James T. Humphries, Leslie P. Sheets. - 3rd ed. - Albany, NY : Delmar Publishers, 1989. - xviii, 651 p. : ill. ; 25 cm. Includes index. Bibliography: p. 627-632. ISBN: 0827338287 LCCN: 88025272 Subjects--Topical Terms: Industrial electronics.