GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1968 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1969)
1968
Exchange copies of these Reports may be obtained from: Geophysical Research Laboratory of the Hungarian Academy of Sciences Sopron, P. О. B. 9. (Hungary) Director: A. TÁRCZY-HORNOCH MEMBER OF THE HUNGARIAN ACADEMY OF SCIENCES