{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathcad 2000--Real Math for Everyone.(Brief Article): An article from: National Defense","author_name":"David L. L. Silbergeld","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008HP0EQ.html\">Mathcad 2000--Real Math for Everyone.(Brief Article): An article from: National Defense</a>","width":400,"height":300}