TY - BOOK AU - Duffin,W.J. TI - Electricity and magnetism SN - 007707209X : AV - QC522 .D83 1990 U1 - 537 20 PY - 1990/// CY - London PB - McGraw-Hill KW - Electricity KW - Magnetism N1 - Includes bibliographical references (p. 413-416) and index ER -