TY - BOOK AU - Duffin,W.J. TI - Electricity and magnetism SN - 0-07-707209-X AV - QC 522 .D83 1990 U1 - 537 20 PY - 1990/// CY - London, New York PB - McGraw-Hill. KW - Electricity KW - Magnetism N1 - Includes bibliographical references and index ER -