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A complete treatise on practical arithmetic and book-keeping ... Revised by Dr. Olinthus Gregory ... To which is added an appendix ... Nineteenth edition, corrected and enlarged, with a supplement ... by Samuel Maynard

出版	Longman, Brown, Green,&Longman, 1842
URL	http://books.google.com.hk/books?id=51FgAAAAcAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN