O'Riley, Ronald P., 1914- Electrical grounding : bringing grounding back to earth : based on the 1990 National Electrical Code / [Book]. Ronald P. O'Riley. - 2nd. ed. - Albany, N.Y. : Delmar Publishers, 1990. - xvii, 274 p. : ill. ; 28 cm. Includes index. ISBN: 0827338538 0827338546 (instructor's guide) LCCN: 89025767 Subjects--Topical Terms: Electric currents--Grounding.