Olsen, J. <br/><br/>
Results of magnetic observations made at Tatuoca (Brazil) Sep 1933 Jan - 1934 
Olsen J. 
 - Copenhagen  Tricot Harsholm Bogtrykkeri  1951 
 - 15p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomagnetism<br/>Geophysics
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / OLS