Program and abstracts for the St. Gall meeting, 1967 edited by Leroy R. Alldredge - Paris International Union of Geodesy and Geophysics 1967 - International Association of Geomagnetism and Aeronomy Bulletin; No. 24 . Subjects--Topical Terms: Iaga Bulletin No.24Iaga BulletinIugg Universal Decimal Class. No.: 550.38 / ALL