{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A key to Green's new arithmetic: Containing the entire operations of all the sums. Designed for the immediate detection of the pupil's errors, and for ... prefixed, an essay on the method of teaching.","author_name":"Richard W. Green","thumbnail_url":"https://www.ebooknetworking.net/books/B00/30T/bigB0030T1F1G.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0030T1F1G.html\">A key to Green&#039;s new arithmetic: Containing the entire operations of all the sums. Designed for the immediate detection of the pupil&#039;s errors, and for ... prefixed, an essay on the method of teaching.</a>","width":400,"height":300}