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magnetomeetria 3 magnetism 2 hüdrograafia 1 maamagnetism 1 topograafia 1
magnetomeetria 3 magnetism 2 hüdrograafia 1 maamagnetism 1 topograafia 1
1
Published 1924
Table of Contents: ';
“...Maakera magnetism /...”
Book
2
3
Published 1927
Subjects: ';
“...magnetism....”
Book