00375nam a2200133   4500020001500000020001500015082001800030100002000048245006600068260002800134300003200162650003100194700001600225  a0574516638  a0574416633  a538 H251 19841 aHanson, Bernice1 aMagnetism and electricity /cBernice Hanson [and] Peggy Lahs.  aChicago :bSRA,cc1984.  a57 p. :bsome ill. ; 28 cm.14aMagnetism and electricity.1 aLahs, Peggy