TY  - BOOK
AU  - Bartels,Julius
AU  - Veldkamp,J.
AU  - Romana,A.
TI  - Geomagnetic data 1958: rapid variations 
U1  - 538.74 
PY  - 1962///
CY  - Amsterdam
PB  - North-Holland
KW  - Geomagnetism
N1  - Association of geomagnetism and aeronomy formaly known as association of terrestrial magnetism and electricity; Library has 2 cops
ER  -