{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Key to the Normal Union Arithmetic, and also Methods of Teaching Arithmetic","author_name":"Edward Brooks","thumbnail_url":"https://www.ebooknetworking.net/books/055/901/big0559012101.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0559012101.html\">Key to the Normal Union Arithmetic, and also Methods of Teaching Arithmetic</a>","width":400,"height":300}