National report to the XVth general assembly of the I.U.G.G. (Moscow, 1971).
Contributors: International Union of Geodesy and Geophysics.; International Association of Geomagnetism and Aeronomy.
Published: 1971
Place of publication: [Madrid
Language: eng
Number of pages: 19
Subjects: Spain. Comisión Nacional de Geodesía y Geofísica. Sección de Geomagnetismo y Aeronomía.
Notes: On t.p.: International Association of Geomagnetism and Aeronomy.