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An Account of the Going of ... John Harrison's Watch at the Royal Observatory from May ... 1766 to March ... 1767
Nevil Maskelyne
其他書名
Together with the Original Observations and Calculations of the Same ...
出版Commissioners of Longitude, 1767
URLhttp://books.google.com.hk/books?id=ZO__GwAACAAJ&hl=&source=gbs_api