000 00267nam a2200097 4500
999 _c334509
_d334509
082 _a553 GP
_bCHA.G.1
100 _aChapman ,S.and Bartels,Julius
245 _aGeomagnetism,Vol.1
_cChapman ,S.and Bartels,Julius
260 _aOxford
_c1940
_b Clarendon Press
942 _cBK