000 00479nas0a22001690004500
001 26758
090 _a26758
100 _a20200127 frey50
101 _aeng
102 _aUS
200 0 1 _aAnnual Report of the Director of the Department of Terrestrial Magnetism
207 _aFor 1945-1946 (1946)-for 1958-1959 (1959)
210 _aWashington D.C.
_dCarnegie Institution of Washington
215 _cil.
_d25 cm.
300 _aOrigem IPIMAR
326 _aAnual
345 _a1946-1959