Parkinson, W. D.  <br/><br/>
An analysis of the geomagnetic diurnal variation during the international geophysical year 
W. D. Parkinson 
 - Canberra  Australian Government Publishing Service  1977 
 - viii+196p.  plates; tables 
 - Bulletin Australia. Bureau of Mineral Resources, Geology and Geophysics .
<br/><br/> Department of National Resources: Bureau of Mineral Resources Geology and Geophysics 
<br/><br/><label>ISBN: </label>642021864 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diurnal VariationGeomagnetic Variation
<br/><br/><label>Universal Decimal Class. No.: </label>550.386"52"  / PAR