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Ingram's Improved Calculator, Shewing the Value of Any Quantity from One Sixteenth Or Nail, to 500 Yards, at from One Shilling to Thirty Shillings Per Yard, which is Equally Applicable to Pounds, Ounces, &c
John Ingram (Accountant.)
出版1841
URLhttp://books.google.com.hk/books?id=Qmkwao64HoEC&hl=&source=gbs_api
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