{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A HISTORY of ENGINEERING and SCIENCE in the BELL SYSTEM: Switching Technology (1925-1975).","author_name":"A. E. Joel Jr.","thumbnail_url":"https://www.ebooknetworking.net/books/093/276/big0932764029.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0932764029.html\">A HISTORY of ENGINEERING and SCIENCE in the BELL SYSTEM: Switching Technology (1925-1975).</a>","width":400,"height":300}