Warring, R. H. Understanding electronics with 32 working circuits R. H. Warring. - Blue Ridge Summit, PA. TAB Books c1978. - 175 p. ill. Includes index. ISBN: 0830698450 LCCN: 78026492 //r85 Subjects--Topical Terms: Electronics--Amateurs' manuals. LC Class. No.: TK9965 / .W39 Dewey Class. No.: 621.38