Bartels, Julius,  1899-1964 <br/><br/>
Geomagnetic data 1958 :  rapid variations / 
 Geomagnetic data 1958 etc 
by J. Bartels, A. Romana, and J. Veldkamp 
 - Amsterdam :  North-Holland,  1962 
 - vi, 93 p. :  ill. ;  22 cm. 
 - International association of geomagnitism and aeronomy bulletin ;  no. 12 m 2 .
<br/><br/> Association of geomagnetism and aeronomy formaly known as association of terrestrial magnetism and electricity  Library has 3 cops. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomagnetism
<br/><br/><label>Dewey Class. No.: </label>538.74