{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Greenleaf's Mathematical Series. A Brief Course in Arithmetic: Oral and Written","author_name":"Benjamin Greenleaf","thumbnail_url":"https://www.ebooknetworking.net/books/B01/A8K/bigB01A8K7EUU.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B01A8K7EUU.html\">Greenleaf&#039;s Mathematical Series. A Brief Course in Arithmetic: Oral and Written</a>","width":400,"height":300}