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Board of Trade Examination Calculations for First Class Engineers, Etc. (Seventh Edition of "Board of Trade Arithmetic" [by P. Youngson].).

Peter YOUNGSON (and SHAW (James H.))

出版	J. Munro & Company, 1918
URL	http://books.google.com.hk/books?id=fhTjMgEACAAJ&hl=&source=gbs_api