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An Account of the Mode Proposed to be Followed in the Trigonometrical Operation for Determining the Relative Situation of the Royal Observatories of Greenwich and Paris ... By Major General William Roy ... - Supplement to Maj. Gen. Roys Paper

出版	J. Nichols, 1787
URL	http://books.google.com.hk/books?id=wCBFQwAACAAJ&hl=&source=gbs_api