{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Demand System Specification and Estimation","author_name":"Robert A. Pollak, Terence J. Wales","thumbnail_url":"https://www.ebooknetworking.net/books/019/510/big0195101219.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0195101219.html\">Demand System Specification and Estimation</a>","width":400,"height":300}