{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Perspectives on the Teaching of Mathematics: Sixty-Sixth Yearbook (National Council of Teachers of Mathematics Yearbook)","author_name":"Rheta N. Rubenstein","thumbnail_url":"https://www.ebooknetworking.net/books/087/353/big0873535588.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0873535588.html\">Perspectives on the Teaching of Mathematics: Sixty-Sixth Yearbook (National Council of Teachers of Mathematics Yearbook)</a>","width":400,"height":300}