{"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 ...With Exercises for the Slate...To Which Is Added, a Practical System of Book-Keeping","author_name":"Roswell Chamberlain Smith","thumbnail_url":"https://www.ebooknetworking.net/books/114/226/big1142262618.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1142262618.html\">Practical and Mental Arithmetic: On a New Plan, in Which Mental Arithmetic Is Combined with the Use of the Slate ...With Exercises for the Slate...To Which Is Added, a Practical System of Book-Keeping</a>","width":400,"height":300}