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Google圖書搜尋
An Attempt to Compare the Instruments for Absolute Magnetic Measurements at Different Observatories
Rijckevorsel van
其他書名
Royal Dutch Meteorological Institute
出版
H. G. Bom
, 1890
URL
http://books.google.com.hk/books?id=aq2-xkmCZOIC&hl=&source=gbs_api
EBook
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