Geomagnetic instruments before 1900
an illustrated account of their construction and use
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Word Count
18,750 words, Guess
Page Count
75 pages
Identifiers
- ISBN-100950725803
- ISBN-139780950725802
- Open LibraryOL17899249M
Subjects
Topics
Other Editions
- Geomagnetic instruments before 1900: an illustrated account of their construction and use
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