Magnetic field and the processes in the earth's interior 
edited by Vaclav Bucha, G. N. Petrova and Serafima P. Burlatskaya 
 - Prague  Academia  1983 
 - 514p.  illus 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ReversalsSecular VariationsEarth-internal StructureMagnetism-earthMagnetism-terrestrialMain Field
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / BUC