{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Practical and Mental Arithmetic, On a New Plan, in Which Mental Arithmetic Is Combined with the Use of the Slate: Containing a Complete System for All Practical Purposes; Being in Dollars and Cents","author_name":"Roswell Chamberlain Smith","thumbnail_url":"https://www.ebooknetworking.net/books/114/245/big1142452557.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1142452557.html\">Practical and Mental Arithmetic, On a New Plan, in Which Mental Arithmetic Is Combined with the Use of the Slate: Containing a Complete System for All Practical Purposes; Being in Dollars and Cents</a>","width":400,"height":300}