TY - BOOK AU - Duff,John R. AU - Herman,Stephen L. TI - Alternating current fundamentals SN - 0827341563 AV - TK 1141 .D83 1991 U1 - 621.319/13 20 PY - 1991/// CY - Albany, N.Y. PB - Delmar Publishers KW - Electric currents, Alternating KW - Electrical engineering N1 - Includes index ER -