GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1973 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1974)
1973
Exchange copies of these Reports may be obtained from: Geodetical and Geophysical Research Institute of the Hungarian Academy of Sciences H—9401 Sopron, Pf. 5. (Hungary) Director: J. SOMOGYI МАМА» cudouANYOS АКАВ США KÖNYVI Alt*