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Project of a New System of Arithmetic, Weight, Measure and Coins
John William Nystrom
其他書名
Proposed to be Called the Tonal System, with Sixteen to the Base
出版
Lippincott
, 1862
URL
http://books.google.com.hk/books?id=TyFRAAAAYAAJ&hl=&source=gbs_api
EBook
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