6th Scientific assembly, Exeter, United Kingdom 24 July-4 August, 1989  authors' addresses and index of papers 
edited by Michael Gadsden 
 - Aberdeen  International Union of Geodesy and Geophysics  1989 
 - International Association of Geomagnetism and Aeronomy; No. 53 .
<br/><br/> Part C: Abstracts, Divisions II and III, IDCs 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IuggIaga
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / IAGA