Warring, R. H. 1920- Understanding electronics / [Book]. by R.H. Warring. - 3rd ed. / edited by G. Randy Slone. - Blue Ridge Summit, PA : Tab Books, 1989. - xiv, 205 p. : ill. ; 25 cm. Includes index. ISBN: 0830690441 0830693440 LCCN: 88032308 Subjects--Topical Terms: Electronics--Amateurs' manuals.