World magnetic survey, 1957-1969 
edited by Alfred J. Zmuda 
 - Paris  International Union of Geodesy and Geophysics  1971 
 - ix+206p. 
 - International Association of Geomagnetism and Aeronomy Bulletin; No. 28 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>IuggIaga
<br/><br/><label>Universal Decimal Class. No.: </label>550.389  / ZMU