{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Proofs without Words: Exercises in Visual Thinking (Classroom Resource Materials) (v. 1) by Roger B. Nelsen Published by The Mathematical Association of America 1st (first) , Later Printing edition (1993) Paperback","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/B00/HQ2/bigB00HQ265P4.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00HQ265P4.html\">Proofs without Words: Exercises in Visual Thinking (Classroom Resource Materials) (v. 1) by Roger B. Nelsen Published by The Mathematical Association of America 1st (first) , Later Printing edition (1993) Paperback</a>","width":400,"height":300}