000 00311nam a2200121Ia 4500
008 211209s1981 xx 000 0 und d
041 _aeng
082 _a621.34 N81 HER
100 _aHERBERT P N
245 _aBASIC ELECTROMAGNETIC FIELDS
260 _aNEW YORK
_bHARPER AND ROW PUBLISHERS
_c1981
300 _a624
999 _c20282
_d20282