Geomagnetic Data,1990   IAGA Indices 
edited by Annick Berthelier and Michel Menvielle 
 - France  ISGI  1996 
 - 177p.  tables 
 - IAGA Bulletin No.32u .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomagnetic Data Geomagnetic IndexesGeomagnetism
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / IAGA