Berthelier, Annick <br/><br/>
Geomagnetic Data,1989   IAGA Indices 
Annick Berthelier and Michael Menvielle 
 - France  ISGI  1996 
 - 162p.  figs 
 - IAGA Bulletin No.32t .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomagnetic DataIaga IndicesIuggIaga Bulletin-data
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / IAGA