{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Comparative effectiveness of some visual aids in seventh grade instruction","author_name":"Joseph J. Weber","thumbnail_url":"https://www.ebooknetworking.net/books/B00/82V/bigB0082VLTO0.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0082VLTO0.html\">Comparative effectiveness of some visual aids in seventh grade instruction</a>","width":400,"height":300}